CINXE.COM
Masseenergilova – Wikipedia
<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="nn" dir="ltr"> <head> <meta charset="UTF-8"> <title>Masseenergilova – Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )nnwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":[",\t."," \t,"],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"dmyt","wgMonthNames":["","januar","februar","mars","april","mai","juni","juli","august","september","oktober","november","desember"],"wgRequestId":"03878001-a07b-4236-8fb8-c27a852aba23","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Masseenergilova","wgTitle":"Masseenergilova","wgCurRevisionId":2721843,"wgRevisionId":2721843,"wgArticleId":31422,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Masse","Energi","Spesiell relativitet","Vitskap i 1905","Fysiske likningar","Albert Einstein"],"wgPageViewLanguage":"nn","wgPageContentLanguage":"nn","wgPageContentModel":"wikitext","wgRelevantPageName":"Masseenergilova","wgRelevantArticleId":31422,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true, "wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"nn","pageLanguageDir":"ltr","pageVariantFallbacks":"nn"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":3000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q35875","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready", "ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.math.styles":"ready","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.new-section","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints", "ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=nn&modules=ext.cite.styles%7Cext.math.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=nn&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=nn&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Masseenergilova – Wikipedia"> <meta property="og:type" content="website"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//nn.m.wikipedia.org/wiki/Masseenergilova"> <link rel="alternate" type="application/x-wiki" title="Endre" href="/w/index.php?title=Masseenergilova&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (nn)"> <link rel="EditURI" type="application/rsd+xml" href="//nn.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://nn.wikipedia.org/wiki/Masseenergilova"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.nn"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom-kjelde" href="/w/index.php?title=Spesial:Siste_endringar&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Masseenergilova rootpage-Masseenergilova skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Hopp til innhald</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Nettstad"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Hovudmeny" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Hovudmeny</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Hovudmeny</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">gøym</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigering </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage" class="mw-list-item"><a href="/wiki/Hovudside" title="Gå til hovudsida [z]" accesskey="z"><span>Hovudside</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Arbeidskontoret" title="Om prosjektet, kva du kan gjera, kvar du finn saker og ting"><span>Arbeidskontoret</span></a></li><li id="n-samfunnshuset" class="mw-list-item"><a href="/wiki/Wikipedia:Samfunnshuset"><span>Samfunnshuset</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Spesial:Siste_endringar" title="Liste over dei siste endringane som er gjorde på wikien. [r]" accesskey="r"><span>Siste endringar</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Spesial:Tilfeldig_side" title="Vis ei tilfeldig side [x]" accesskey="x"><span>Tilfeldig side</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Hjelp:Innhald" title="Hjelp til å bruke alle funksjonane."><span>Hjelp</span></a></li><li id="n-kontakt" class="mw-list-item"><a href="/wiki/Wikipedia:Kontakt"><span>Kontakt</span></a></li> </ul> </div> </div> <div id="p-query" class="vector-menu mw-portlet mw-portlet-query emptyPortlet" > <div class="vector-menu-heading"> Eksterne søk </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> På andre prosjekt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Einstein_formula" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q35875" title="Lenkje til tilknytt element [g]" accesskey="g"><span>Wikidata-element</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Hovudside" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="det frie oppslagsverket" src="/static/images/mobile/copyright/wikipedia-tagline-nn.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Spesial:S%C3%B8k" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Søk gjennom Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Søk</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Søk i Wikipedia" aria-label="Søk i Wikipedia" autocapitalize="sentences" title="Søk gjennom Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Spesial:Søk"> </div> <button class="cdx-button cdx-search-input__end-button">Søk</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personlege verktøy"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Utsjånad"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Endre skriftstørrelse, bredde og farge på siden." > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Utsjånad" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Utsjånad</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_nn.wikipedia.org&uselang=nn" class=""><span>Gåver</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=Masseenergilova" title="Me oppfordrar til at du oppretter ein konto og loggar inn, men det er ikkje påkravd." class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=Masseenergilova" title="Det er ikkje obligatorisk å logga inn, men medfører mange fordelar. [o]" accesskey="o" class=""><span>Logg inn</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Fleire val" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personlege verktøy" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personlege verktøy</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Brukarmeny" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_nn.wikipedia.org&uselang=nn"><span>Gåver</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Opprett_konto&returnto=Masseenergilova" title="Me oppfordrar til at du oppretter ein konto og loggar inn, men det er ikkje påkravd."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Opprett konto</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Logg_inn&returnto=Masseenergilova" title="Det er ikkje obligatorisk å logga inn, men medfører mange fordelar. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Sider for utlogga bidragsytarar <a href="/wiki/Hjelp:Introduksjon" aria-label="Lær meir om redigering"><span>lær meir</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Spesial:Bidraga_mine" title="Liste over endringar gjorde frå denne IP-adressa [y]" accesskey="y"><span>Bidrag</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Spesial:Diskusjonssida_mi" title="Diskusjon om endringar gjorde av denne ip-adressa [n]" accesskey="n"><span>Diskusjon</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettstad"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innhald" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhald</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">gøym</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Byrjinga</div> </a> </li> <li id="toc-Bevaring_av_masse_og_energi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bevaring_av_masse_og_energi"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Bevaring av masse og energi</span> </div> </a> <ul id="toc-Bevaring_av_masse_og_energi-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Historie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Historie</span> </div> </a> <ul id="toc-Historie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Praktisk_døme" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Praktisk_døme"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Praktisk døme</span> </div> </a> <ul id="toc-Praktisk_døme-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kjelder" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kjelder"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Kjelder</span> </div> </a> <ul id="toc-Kjelder-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhald" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innhaldslista" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innhaldslista</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Masseenergilova</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til ein artikkel på eit anna språk. Tilgjengeleg på 74 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-74" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">74 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Masseenergiloven" title="Masseenergiloven – norsk bokmål" lang="nb" hreflang="nb" data-title="Masseenergiloven" data-language-autonym="Norsk bokmål" data-language-local-name="norsk bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/E_%3D_mc%C2%B2" title="E = mc² – svensk" lang="sv" hreflang="sv" data-title="E = mc²" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – dansk" lang="da" hreflang="da" data-title="E=mc²" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Massa-energieverband" title="Massa-energieverband – afrikaans" lang="af" hreflang="af" data-title="Massa-energieverband" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/%C3%84quivalenz_von_Masse_und_Energie" title="Äquivalenz von Masse und Energie – sveitsertysk" lang="gsw" hreflang="gsw" data-title="Äquivalenz von Masse und Energie" data-language-autonym="Alemannisch" data-language-local-name="sveitsertysk" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%83%D8%A7%D9%81%D8%A4_%D8%A7%D9%84%D9%83%D8%AA%D9%84%D8%A9_%D9%88%D8%A7%D9%84%D8%B7%D8%A7%D9%82%D8%A9" title="تكافؤ الكتلة والطاقة – arabisk" lang="ar" hreflang="ar" data-title="تكافؤ الكتلة والطاقة" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Equivalencia_ente_masa_y_enerx%C3%ADa" title="Equivalencia ente masa y enerxía – asturisk" lang="ast" hreflang="ast" data-title="Equivalencia ente masa y enerxía" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/K%C3%BCtl%C9%99_v%C9%99_enerjinin_ekvivalentliyi" title="Kütlə və enerjinin ekvivalentliyi – aserbajdsjansk" lang="az" hreflang="az" data-title="Kütlə və enerjinin ekvivalentliyi" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AD%E0%A6%B0%E2%80%93%E0%A6%B6%E0%A6%95%E0%A7%8D%E0%A6%A4%E0%A6%BF_%E0%A6%B8%E0%A6%AE%E0%A6%A4%E0%A6%BE" title="ভর–শক্তি সমতা – bengali" lang="bn" hreflang="bn" data-title="ভর–শক্তি সমতা" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%AD%D0%BA%D0%B2%D1%96%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BD%D0%B0%D1%81%D1%86%D1%8C_%D0%BC%D0%B0%D1%81%D1%8B_%D1%96_%D1%8D%D0%BD%D0%B5%D1%80%D0%B3%D1%96%D1%96" title="Эквівалентнасць масы і энергіі – belarusisk" lang="be" hreflang="be" data-title="Эквівалентнасць масы і энергіі" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%95%D0%BA%D0%B2%D0%B8%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BD%D0%BE%D1%81%D1%82_%D0%BD%D0%B0_%D0%BC%D0%B0%D1%81%D0%B0_%D0%B8_%D0%B5%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D1%8F" title="Еквивалентност на маса и енергия – bulgarsk" lang="bg" hreflang="bg" data-title="Еквивалентност на маса и енергия" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – bretonsk" lang="br" hreflang="br" data-title="E=mc²" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Equival%C3%A8ncia_entre_massa_i_energia" title="Equivalència entre massa i energia – katalansk" lang="ca" hreflang="ca" data-title="Equivalència entre massa i energia" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%AD%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D0%BF%D0%B5_%D0%BC%D0%B0%D1%81%D1%81%D0%B0_%D1%8D%D0%BA%D0%B2%D0%B8%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BB%C4%83%D1%85%C4%95" title="Энергипе масса эквивалентлăхĕ – tsjuvansk" lang="cv" hreflang="cv" data-title="Энергипе масса эквивалентлăхĕ" data-language-autonym="Чӑвашла" data-language-local-name="tsjuvansk" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/E_%3D_mc%C2%B2" title="E = mc² – tsjekkisk" lang="cs" hreflang="cs" data-title="E = mc²" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/%C3%84quivalenz_von_Masse_und_Energie" title="Äquivalenz von Masse und Energie – tysk" lang="de" hreflang="de" data-title="Äquivalenz von Masse und Energie" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/E_%3D_mc%C2%B2" title="E = mc² – estisk" lang="et" hreflang="et" data-title="E = mc²" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%99%CF%83%CE%BF%CE%B4%CF%85%CE%BD%CE%B1%CE%BC%CE%AF%CE%B1_%CE%BC%CE%AC%CE%B6%CE%B1%CF%82-%CE%B5%CE%BD%CE%AD%CF%81%CE%B3%CE%B5%CE%B9%CE%B1%CF%82" title="Ισοδυναμία μάζας-ενέργειας – gresk" lang="el" hreflang="el" data-title="Ισοδυναμία μάζας-ενέργειας" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Mass%E2%80%93energy_equivalence" title="Mass–energy equivalence – engelsk" lang="en" hreflang="en" data-title="Mass–energy equivalence" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Equivalencia_entre_masa_y_energ%C3%ADa" title="Equivalencia entre masa y energía – spansk" lang="es" hreflang="es" data-title="Equivalencia entre masa y energía" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Masenergia_ekvivalento" title="Masenergia ekvivalento – esperanto" lang="eo" hreflang="eo" data-title="Masenergia ekvivalento" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu badge-Q17437796 badge-featuredarticle mw-list-item" title="god artikkel"><a href="https://eu.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – baskisk" lang="eu" hreflang="eu" data-title="E=mc²" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%87%D9%85%E2%80%8C%D8%A7%D8%B1%D8%B2%DB%8C_%D8%AC%D8%B1%D9%85_%D9%88_%D8%A7%D9%86%D8%B1%DA%98%DB%8C" title="همارزی جرم و انرژی – persisk" lang="fa" hreflang="fa" data-title="همارزی جرم و انرژی" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/E%3Dmc2" title="E=mc2 – fransk" lang="fr" hreflang="fr" data-title="E=mc2" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Massa-enerzjyrelaasje" title="Massa-enerzjyrelaasje – vestfrisisk" lang="fy" hreflang="fy" data-title="Massa-enerzjyrelaasje" data-language-autonym="Frysk" data-language-local-name="vestfrisisk" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Coibh%C3%A9is_maise_is_fuinnimh" title="Coibhéis maise is fuinnimh – irsk" lang="ga" hreflang="ga" data-title="Coibhéis maise is fuinnimh" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Equivalencia_masa-enerx%C3%ADa" title="Equivalencia masa-enerxía – galisisk" lang="gl" hreflang="gl" data-title="Equivalencia masa-enerxía" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%88%EB%9F%89-%EC%97%90%EB%84%88%EC%A7%80_%EB%93%B1%EA%B0%80" title="질량-에너지 등가 – koreansk" lang="ko" hreflang="ko" data-title="질량-에너지 등가" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B6%D5%A1%D5%B6%D5%A3%D5%BE%D5%A1%D5%AE%D5%AB_%D6%87_%D5%A7%D5%B6%D5%A5%D6%80%D5%A3%D5%AB%D5%A1%D5%B5%D5%AB_%D5%B0%D5%A1%D5%B4%D5%A1%D6%80%D5%AA%D5%A5%D6%84%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Զանգվածի և էներգիայի համարժեքություն – armensk" lang="hy" hreflang="hy" data-title="Զանգվածի և էներգիայի համարժեքություն" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A6%E0%A5%8D%E0%A4%B0%E0%A4%B5%E0%A5%8D%E0%A4%AF%E0%A4%AE%E0%A4%BE%E0%A4%A8-%E0%A4%8A%E0%A4%B0%E0%A5%8D%E0%A4%9C%E0%A4%BE_%E0%A4%B8%E0%A4%AE%E0%A4%A4%E0%A5%81%E0%A4%B2%E0%A5%8D%E0%A4%AF%E0%A4%A4%E0%A4%BE" title="द्रव्यमान-ऊर्जा समतुल्यता – hindi" lang="hi" hreflang="hi" data-title="द्रव्यमान-ऊर्जा समतुल्यता" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Ekvivalencija_mase_i_energije" title="Ekvivalencija mase i energije – kroatisk" lang="hr" hreflang="hr" data-title="Ekvivalencija mase i energije" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Ekuivalensi_massa%E2%80%93energi" title="Ekuivalensi massa–energi – indonesisk" lang="id" hreflang="id" data-title="Ekuivalensi massa–energi" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – italiensk" lang="it" hreflang="it" data-title="E=mc²" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – hebraisk" lang="he" hreflang="he" data-title="E=mc²" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – javanesisk" lang="jv" hreflang="jv" data-title="E=mc²" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B0%D1%81%D1%81%D0%B0-%D1%8D%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D1%8F_%D1%8D%D0%BA%D0%B2%D0%B8%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D1%96" title="Масса-энергия эквиваленті – kasakhisk" lang="kk" hreflang="kk" data-title="Масса-энергия эквиваленті" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-lad mw-list-item"><a href="https://lad.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – ladino" lang="lad" hreflang="lad" data-title="E=mc²" data-language-autonym="Ladino" data-language-local-name="ladino" class="interlanguage-link-target"><span>Ladino</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%97%E0%BA%BD%E0%BA%9A%E0%BB%80%E0%BA%97%E0%BA%BB%E0%BB%88%E0%BA%B2%E0%BA%A1%E0%BA%A7%E0%BA%99-%E0%BA%9E%E0%BA%B0%E0%BA%A5%E0%BA%B1%E0%BA%87%E0%BA%87%E0%BA%B2%E0%BA%99" title="ທຽບເທົ່າມວນ-ພະລັງງານ – laotisk" lang="lo" hreflang="lo" data-title="ທຽບເທົ່າມວນ-ພະລັງງານ" data-language-autonym="ລາວ" data-language-local-name="laotisk" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Aequatio_massae_et_energiae" title="Aequatio massae et energiae – latin" lang="la" hreflang="la" data-title="Aequatio massae et energiae" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Masas%E2%80%94ener%C4%A3ijas_proporcionalit%C4%81te" title="Masas—enerģijas proporcionalitāte – latvisk" lang="lv" hreflang="lv" data-title="Masas—enerģijas proporcionalitāte" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Mas%C4%97s_ir_energijos_s%C4%85ry%C5%A1is" title="Masės ir energijos sąryšis – litauisk" lang="lt" hreflang="lt" data-title="Masės ir energijos sąryšis" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/T%C3%B6meg-energia_ekvivalencia" title="Tömeg-energia ekvivalencia – ungarsk" lang="hu" hreflang="hu" data-title="Tömeg-energia ekvivalencia" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%95%D0%B4%D0%BD%D0%B0%D0%BA%D0%B2%D0%BE%D1%81%D1%82_%D0%BD%D0%B0_%D0%BC%D0%B0%D1%81%D0%B0%D1%82%D0%B0_%D0%B8_%D0%B5%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D1%98%D0%B0%D1%82%D0%B0" title="Еднаквост на масата и енергијата – makedonsk" lang="mk" hreflang="mk" data-title="Еднаквост на масата и енергијата" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/E_%3D_mc%C2%B2" title="E = mc² – malayalam" lang="ml" hreflang="ml" data-title="E = mc²" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – malayisk" lang="ms" hreflang="ms" data-title="E=mc²" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Massa-energierelatie" title="Massa-energierelatie – nederlandsk" lang="nl" hreflang="nl" data-title="Massa-energierelatie" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%B3%AA%E9%87%8F%E3%81%A8%E3%82%A8%E3%83%8D%E3%83%AB%E3%82%AE%E3%83%BC%E3%81%AE%E7%AD%89%E4%BE%A1%E6%80%A7" title="質量とエネルギーの等価性 – japansk" lang="ja" hreflang="ja" data-title="質量とエネルギーの等価性" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-nap mw-list-item"><a href="https://nap.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – napolitansk" lang="nap" hreflang="nap" data-title="E=mc²" data-language-autonym="Napulitano" data-language-local-name="napolitansk" class="interlanguage-link-target"><span>Napulitano</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%9A%E1%9E%BC%E1%9E%94%E1%9E%98%E1%9E%93%E1%9F%92%E1%9E%8F%E1%9E%9F%E1%9E%98%E1%9E%98%E1%9E%BC%E1%9E%9B%E1%9E%98%E1%9F%89%E1%9E%B6%E1%9E%9F%E1%9F%8B-%E1%9E%90%E1%9E%B6%E1%9E%98%E1%9E%96%E1%9E%9B" title="រូបមន្តសមមូលម៉ាស់-ថាមពល – khmer" lang="km" hreflang="km" data-title="រូបមន្តសមមូលម៉ាស់-ថាមពល" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="khmer" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/R%C3%B3wnowa%C5%BCno%C5%9B%C4%87_masy_i_energii" title="Równoważność masy i energii – polsk" lang="pl" hreflang="pl" data-title="Równoważność masy i energii" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Equival%C3%AAncia_massa%E2%80%93energia" title="Equivalência massa–energia – portugisisk" lang="pt" hreflang="pt" data-title="Equivalência massa–energia" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Echivalen%C8%9B%C4%83_mas%C4%83-energie" title="Echivalență masă-energie – rumensk" lang="ro" hreflang="ro" data-title="Echivalență masă-energie" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru badge-Q17437798 badge-goodarticle mw-list-item" title="betre artikkel"><a href="https://ru.wikipedia.org/wiki/%D0%AD%D0%BA%D0%B2%D0%B8%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BD%D0%BE%D1%81%D1%82%D1%8C_%D0%BC%D0%B0%D1%81%D1%81%D1%8B_%D0%B8_%D1%8D%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D0%B8" title="Эквивалентность массы и энергии – russisk" lang="ru" hreflang="ru" data-title="Эквивалентность массы и энергии" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – siciliansk" lang="scn" hreflang="scn" data-title="E=mc²" data-language-autonym="Sicilianu" data-language-local-name="siciliansk" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%83%E0%B7%8A%E0%B6%9A%E0%B6%B1%E0%B7%8A%E0%B6%B0%E2%80%93%E0%B7%81%E0%B6%9A%E0%B7%8A%E0%B6%AD%E0%B7%92_%E0%B6%AD%E0%B7%94%E0%B6%BD%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B6%AD%E0%B7%8F%E0%B7%80%E0%B6%BA" title="ස්කන්ධ–ශක්ති තුල්යතාවය – singalesisk" lang="si" hreflang="si" data-title="ස්කන්ධ–ශක්ති තුල්යතාවය" data-language-autonym="සිංහල" data-language-local-name="singalesisk" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Einsteinov_vz%C5%A5ah" title="Einsteinov vzťah – slovakisk" lang="sk" hreflang="sk" data-title="Einsteinov vzťah" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/E_%3D_mc%C2%B2" title="E = mc² – slovensk" lang="sl" hreflang="sl" data-title="E = mc²" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DB%8C%DB%95%DA%A9%D8%B3%D8%A7%D9%86%DB%8C_%D8%A8%D8%A7%D8%B1%D8%B3%D8%AA%DB%95-%D9%88%D8%B2%DB%95" title="یەکسانی بارستە-وزە – sorani" lang="ckb" hreflang="ckb" data-title="یەکسانی بارستە-وزە" data-language-autonym="کوردی" data-language-local-name="sorani" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%88%D0%B5%D0%B4%D0%BD%D0%B0%D0%BA%D0%BE%D1%81%D1%82_%D0%BC%D0%B0%D1%81%D0%B5_%D0%B8_%D0%B5%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D1%98%D0%B5" title="Једнакост масе и енергије – serbisk" lang="sr" hreflang="sr" data-title="Једнакост масе и енергије" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Ekvivalentnost_mase_i_energije" title="Ekvivalentnost mase i energije – serbokroatisk" lang="sh" hreflang="sh" data-title="Ekvivalentnost mase i energije" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – sundanesisk" lang="su" hreflang="su" data-title="E=mc²" data-language-autonym="Sunda" data-language-local-name="sundanesisk" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – finsk" lang="fi" hreflang="fi" data-title="E=mc²" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Pagkakatumbas_ng_masa_at_enerhiya" title="Pagkakatumbas ng masa at enerhiya – tagalog" lang="tl" hreflang="tl" data-title="Pagkakatumbas ng masa at enerhiya" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%90%E0%AE%A9%E0%AF%8D%E0%AE%B8%E0%AF%8D%E0%AE%9F%E0%AF%80%E0%AE%A9%E0%AE%BF%E0%AE%A9%E0%AF%8D_%E0%AE%AA%E0%AF%8A%E0%AE%B0%E0%AF%81%E0%AE%A3%E0%AF%8D%E0%AE%AE%E0%AF%88_-_%E0%AE%86%E0%AE%B1%E0%AF%8D%E0%AE%B1%E0%AE%B2%E0%AF%8D_%E0%AE%9A%E0%AE%AE%E0%AE%A9%E0%AF%8D%E0%AE%AA%E0%AE%BE%E0%AE%9F%E0%AF%81" title="ஐன்ஸ்டீனின் பொருண்மை - ஆற்றல் சமன்பாடு – tamil" lang="ta" hreflang="ta" data-title="ஐன்ஸ்டீனின் பொருண்மை - ஆற்றல் சமன்பாடு" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%AA%E0%B8%A1%E0%B8%A1%E0%B8%B9%E0%B8%A5%E0%B8%A1%E0%B8%A7%E0%B8%A5%E2%80%93%E0%B8%9E%E0%B8%A5%E0%B8%B1%E0%B8%87%E0%B8%87%E0%B8%B2%E0%B8%99" title="ความสมมูลมวล–พลังงาน – thai" lang="th" hreflang="th" data-title="ความสมมูลมวล–พลังงาน" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/K%C3%BCtle-enerji_e%C5%9Fde%C4%9Ferli%C4%9Fi" title="Kütle-enerji eşdeğerliği – tyrkisk" lang="tr" hreflang="tr" data-title="Kütle-enerji eşdeğerliği" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%B8%D1%82%D0%B0%D0%BD%D0%BD%D1%8F_%D0%B5%D0%BA%D0%B2%D1%96%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BD%D0%BE%D1%81%D1%82%D1%96_%D0%BC%D0%B0%D1%81%D0%B8_%D1%82%D0%B0_%D0%B5%D0%BD%D0%B5%D1%80%D0%B3%D1%96%D1%97" title="Питання еквівалентності маси та енергії – ukrainsk" lang="uk" hreflang="uk" data-title="Питання еквівалентності маси та енергії" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/E%3Dmc2" title="E=mc2 – urdu" lang="ur" hreflang="ur" data-title="E=mc2" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/S%E1%BB%B1_t%C6%B0%C6%A1ng_%C4%91%C6%B0%C6%A1ng_kh%E1%BB%91i_l%C6%B0%E1%BB%A3ng%E2%80%93n%C4%83ng_l%C6%B0%E1%BB%A3ng" title="Sự tương đương khối lượng–năng lượng – vietnamesisk" lang="vi" hreflang="vi" data-title="Sự tương đương khối lượng–năng lượng" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%B4%A8%E8%83%BD%E7%AD%89%E4%BB%B7" title="质能等价 – wu" lang="wuu" hreflang="wuu" data-title="质能等价" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – jiddisk" lang="yi" hreflang="yi" data-title="E=mc²" data-language-autonym="ייִדיש" data-language-local-name="jiddisk" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E8%B3%AA%E8%83%BD%E7%AD%89%E5%83%B9" title="質能等價 – kantonesisk" lang="yue" hreflang="yue" data-title="質能等價" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/E%3Dmc%C2%B2" title="E=mc² – dimli" lang="diq" hreflang="diq" data-title="E=mc²" data-language-autonym="Zazaki" data-language-local-name="dimli" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E8%B3%AA%E8%83%BD%E7%AD%89%E5%83%B9" title="質能等價 – kinesisk" lang="zh" hreflang="zh" data-title="質能等價" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q35875#sitelinks-wikipedia" title="Endra mellomspråklege lenkjer" class="wbc-editpage">Endra lenkjer</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Masseenergilova" title="Vis innhaldssida [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Diskusjon:Masseenergilova&action=edit&redlink=1" rel="discussion" class="new" title="Diskusjon om innhaldssida (sida finst ikkje) [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Endre språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk nynorsk</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visningar"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Masseenergilova"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Masseenergilova&veaction=edit" title="Endre sida [v]" accesskey="v"><span>Endre</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Masseenergilova&action=edit" title="Endre kjeldekoden til sida [e]" accesskey="e"><span>Endre wikiteksten</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Masseenergilova&action=history" title="Eldre versjonar av sida [h]" accesskey="h"><span>Sjå historikken</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">gøym</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlingar </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Masseenergilova"><span>Les</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Masseenergilova&veaction=edit" title="Endre sida [v]" accesskey="v"><span>Endre</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Masseenergilova&action=edit" title="Endre kjeldekoden til sida [e]" accesskey="e"><span>Endre wikiteksten</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Masseenergilova&action=history"><span>Sjå historikken</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Ålment </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesial:Lenkjer_hit/Masseenergilova" title="Liste over alle wikisidene som har lenkjer hit [j]" accesskey="j"><span>Lenkjer hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesial:Relaterte_endringar/Masseenergilova" rel="nofollow" title="Nylege endringar på sider denne sida lenkjar til [k]" accesskey="k"><span>Relaterte endringar</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=nn" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Spesial:Spesialsider" title="Liste over spesialsider [q]" accesskey="q"><span>Spesialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Masseenergilova&oldid=2721843" title="Fast lenkje til denne versjonen av sida"><span>Fast lenkje</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Masseenergilova&action=info" title="Meir informasjon om sida"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesial:Siter&page=Masseenergilova&id=2721843&wpFormIdentifier=titleform" title="Informasjon om korleis ein siterer denne sida"><span>Siter denne sida</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spesial:UrlShortener&url=https%3A%2F%2Fnn.wikipedia.org%2Fwiki%2FMasseenergilova"><span>Hent kort URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spesial:QrCode&url=https%3A%2F%2Fnn.wikipedia.org%2Fwiki%2FMasseenergilova"><span>Last ned QR-kode</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Skriv ut/eksporter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Spesial:Bok&bookcmd=book_creator&referer=Masseenergilova"><span>Opprett ei bok</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spesial:DownloadAsPdf&page=Masseenergilova&action=show-download-screen"><span>Last ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Masseenergilova&printable=yes" title="Utskriftsversjon av sida [p]" accesskey="p"><span>Utskriftsversjon</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utsjånad"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utsjånad</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">gøym</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Frå Wikipedia – det frie oppslagsverket</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nn" dir="ltr"><p><b>Masseenergilova</b> forklarer forholdet mellom <a href="/wiki/Energi" title="Energi">energi</a> og <a href="/wiki/Masse" title="Masse">masse</a>. Massen til ein lekam er eit mål på kor mykje energi han inneheld. <a href="/wiki/Albert_Einstein" title="Albert Einstein">Albert Einstein</a> utleia denne samanhengen i <a href="/wiki/1905" title="1905">1905</a> og han er seinare vorte kjend gjennom formelen </p> <dl><dd><dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E=mc^{2}\,\!}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>E</mi> <mo>=</mo> <mi>m</mi> <msup> <mi>c</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mspace width="thinmathspace" /> <mspace width="negativethinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E=mc^{2}\,\!}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c1637b8d230ce4a8329f15d9ab8852ebd2f50d84" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; margin-right: -0.387ex; width:9.363ex; height:2.676ex;" alt="{\displaystyle E=mc^{2}\,\!}"></span></dd></dl></dd></dl> <p>der E er energi, m er masse og c er <a href="/wiki/Lysfart" class="mw-redirect" title="Lysfart">lysfarten</a> i vakuum. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Bevaring_av_masse_og_energi">Bevaring av masse og energi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Masseenergilova&veaction=edit&section=1" title="Endre bolk: Bevaring av masse og energi" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Masseenergilova&action=edit&section=1" title="Rediger kildekoden til seksjonen Bevaring av masse og energi"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Masseenergilova postulerer at masse og energi er to sider av same sak. Han impliserer ikkje at masse kan omvandlast til energi, men heller at dersom energi endrar form og forlèt eit system tek det med seg den ekvivalente massen ut av systemet. Denne samanhengen forklarar den store energimengda som kan frigjerast av kjernefysiske prosessar, massen er vesentleg mindre etter reaksjonen, dette tyder at ei vesentleg mengd energi har forlate systemet. Slike kjernefysiske prosessar er det som frigjer dei store energimengdene i <a href="/wiki/Kjernev%C3%A5pen" class="mw-redirect" title="Kjernevåpen">kjernevåpen</a> og <a href="/wiki/Atomreaktor" class="mw-redirect" title="Atomreaktor">atomreaktorar</a> </p> <div class="mw-heading mw-heading2"><h2 id="Historie">Historie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Masseenergilova&veaction=edit&section=2" title="Endre bolk: Historie" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Masseenergilova&action=edit&section=2" title="Rediger kildekoden til seksjonen Historie"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Sjølv om andre tidlegare hadde foreslått ein samanheng mellom masse og energi var Albert Einstein den første som korrekt utleia samanhengen. Denne vart utleia i artikkelen «Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?»<sup id="cite_ref-artikkel_1-0" class="reference"><a href="#cite_note-artikkel-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. I artikkelen vert samanhengen formulert på følgjande vis: Dersom ein lekam gjev frå seg ei energimengd L vil massen minske som <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle L/V^{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>L</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <msup> <mi>V</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle L/V^{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5282b34c91481dbe7a2b25dad900a04c43ff5432" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:5.716ex; height:3.176ex;" alt="{\displaystyle L/V^{2}}"></span>, der V er lysfarten i vakuum. Formelen vart utleidd som ein direkte konsekvens av <a href="/wiki/Den_spesielle_relativitetsteorien" title="Den spesielle relativitetsteorien">den spesielle relativitetsteorien</a> publisert av Einstein tidlegare same år. </p> <div class="mw-heading mw-heading2"><h2 id="Praktisk_døme"><span id="Praktisk_d.C3.B8me"></span>Praktisk døme</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Masseenergilova&veaction=edit&section=3" title="Endre bolk: Praktisk døme" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Masseenergilova&action=edit&section=3" title="Rediger kildekoden til seksjonen Praktisk døme"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ved å bruke denne formelen kan vi finne ut til dømes kor mykje energi ein <a href="/wiki/Tomat" title="Tomat">tomat</a> på 0,1 <a href="/wiki/Kilogram" title="Kilogram">kilogram</a> tilsvarar </p><p><i>E</i>=<i>mc</i>² </p><p><i>E</i>=0,1×<span style="white-space:nowrap;">299 792 458²</span> </p><p><i>E</i>=0,1×<span style="white-space:nowrap;">89 875 517 873 681 764</span> </p><p><i>E</i>=<span style="white-space:nowrap;">8 987 551 787 368 176,4</span> </p><p>Dette betyr at ein tomat som veg 0,1 kg tilsvarar nesten 9 billiardar <a href="/wiki/Joule" title="Joule">joule</a> <span style="white-space:nowrap;">(8 987 551 787 368 176,4 J)</span>. Til samanlikning vil ein tomat gje frå seg éin joule til underlaget dersom ein slepp han ned frå éin meters høgd. Med andre ord er ein særs liten masse ekvivalent med ei enorm energimengd. </p> <div class="mw-heading mw-heading2"><h2 id="Kjelder">Kjelder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Masseenergilova&veaction=edit&section=4" title="Endre bolk: Kjelder" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Masseenergilova&action=edit&section=4" title="Rediger kildekoden til seksjonen Kjelder"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small"> <ul><li><i>Denne artikkelen bygger på «<a href="https://no.wikipedia.org/wiki/Masseenergiloven" class="extiw" title="nb:Masseenergiloven">Masseenergiloven</a>» frå <a href="https://no.wikipedia.org/wiki/Hovedside" class="extiw" title="nb:Hovedside">Wikipedia på bokmål</a>, den 16. august 2012.</i> <ul><li><i><a href="https://no.wikipedia.org/wiki/Hovedside" class="extiw" title="nb:Hovedside">Wikipedia på bokmål</a> oppgav desse kjeldene: <ol class="references"></ol></i></li></ul></li></ul><i> <li id="cite_note-artikkel-1"><span class="mw-cite-backlink"><a href="#cite_ref-artikkel_1-0">↑</a></span> <span class="reference-text"> «Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?» Annalen der Physik 18: 639–643</span> </li> </i> </div> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐745f94f9f8‐tnd7f Cached time: 20241120062243 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.020 seconds Real time usage: 0.078 seconds Preprocessor visited node count: 127/1000000 Post‐expand include size: 405/2097152 bytes Template argument size: 89/2097152 bytes Highest expansion depth: 4/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 530/5000000 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 6.781 1 -total 48.10% 3.262 4 Mal:Nowrap 46.19% 3.132 2 Mal:Wikipedia-utgåve --> <!-- Saved in parser cache with key nnwiki:pcache:idhash:31422-0!canonical and timestamp 20241120062243 and revision id 2721843. Rendering was triggered because: page-view --> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Henta frå «<a dir="ltr" href="https://nn.wikipedia.org/w/index.php?title=Masseenergilova&oldid=2721843">https://nn.wikipedia.org/w/index.php?title=Masseenergilova&oldid=2721843</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Kategori:Kategoriar" title="Kategori:Kategoriar">Kategoriar</a>: <ul><li><a href="/wiki/Kategori:Masse" title="Kategori:Masse">Masse</a></li><li><a href="/wiki/Kategori:Energi" title="Kategori:Energi">Energi</a></li><li><a href="/wiki/Kategori:Spesiell_relativitet" title="Kategori:Spesiell relativitet">Spesiell relativitet</a></li><li><a href="/wiki/Kategori:Vitskap_i_1905" title="Kategori:Vitskap i 1905">Vitskap i 1905</a></li><li><a href="/wiki/Kategori:Fysiske_likningar" title="Kategori:Fysiske likningar">Fysiske likningar</a></li><li><a href="/wiki/Kategori:Albert_Einstein" title="Kategori:Albert Einstein">Albert Einstein</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Denne sida vart sist endra den 25. mai 2015 kl. 02:47.</li> <li id="footer-info-copyright">All tekst er tilgjengeleg under <a rel="nofollow" class="external text" href="http://creativecommons.org/licenses/by-sa/4.0/deed.no">Creative Commons-lisensen Namngjeving/Del på same vilkåra</a>. Sjå <a href="/wiki/Wikipedia:Vilk%C3%A5r" class="mw-redirect" title="Wikipedia:Vilkår">Vilkår</a> for detaljar.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Personvern</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Om">Om Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Atterhald">Atterhald</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Retningsliner for åtferd</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Utviklarar</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/nn.wikipedia.org">Statistikk</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Fråsegn om informasjonskapslar</a></li> <li id="footer-places-mobileview"><a href="//nn.m.wikipedia.org/w/index.php?title=Masseenergilova&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">For mobil</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-gzd6v","wgBackendResponseTime":173,"wgPageParseReport":{"limitreport":{"cputime":"0.020","walltime":"0.078","ppvisitednodes":{"value":127,"limit":1000000},"postexpandincludesize":{"value":405,"limit":2097152},"templateargumentsize":{"value":89,"limit":2097152},"expansiondepth":{"value":4,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":530,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 6.781 1 -total"," 48.10% 3.262 4 Mal:Nowrap"," 46.19% 3.132 2 Mal:Wikipedia-utgåve"]},"cachereport":{"origin":"mw-web.eqiad.main-745f94f9f8-tnd7f","timestamp":"20241120062243","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Masseenergilova","url":"https:\/\/nn.wikipedia.org\/wiki\/Masseenergilova","sameAs":"http:\/\/www.wikidata.org\/entity\/Q35875","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q35875","author":{"@type":"Organization","name":"Bidragsytarar til Wikimedia-prosjekta"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2006-01-14T15:49:20Z","dateModified":"2015-05-25T01:47:11Z"}</script> </body> </html>