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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Hasi saioa</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"> Izena eman gabeko erabiltzaileentzako orrialdeak <a href="/wiki/Laguntza:Sarrera" aria-label="Artikuluak aldatzeari buruz gehiago ikasi"><span>gehiago ikasi</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/Berezi:NireEkarpenak" title="IP helbide honetatik egindako aldaketen zerrenda [y]" accesskey="y"><span>Ekarpenak</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Berezi:NireEztabaida" title="Zure IParen eztabaida [n]" accesskey="n"><span>Eztabaida</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"></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="Gunea"> <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="Edukiak" 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">Edukiak</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mugitu alboko barrara</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">ezkutatu</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">⇑ Gora</div> </a> </li> <li id="toc-Oreka_hidrostatikoa_planetak_definitzeko" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Oreka_hidrostatikoa_planetak_definitzeko"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Oreka hidrostatikoa planetak definitzeko</span> </div> </a> <ul id="toc-Oreka_hidrostatikoa_planetak_definitzeko-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Erreferentziak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Erreferentziak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Erreferentziak</span> </div> </a> <ul id="toc-Erreferentziak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kanpo_estekak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kanpo_estekak"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Kanpo estekak</span> </div> </a> <ul id="toc-Kanpo_estekak-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="Edukiak" 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="Eduki taularen ikusgarritasuna aldatu" > <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">Eduki taularen ikusgarritasuna aldatu</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">Oreka hidrostatiko</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="Joan beste hizkuntza batean idatzitako artikulu batera. 40 hizkuntzatan eskuragarri." > <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-40" 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">40 hizkuntza</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Hidrostatiese_ewewig" title="Hidrostatiese ewewig – afrikaansa" lang="af" hreflang="af" data-title="Hidrostatiese ewewig" data-language-autonym="Afrikaans" data-language-local-name="afrikaansa" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%88%D8%A7%D8%B2%D9%86_%D9%87%D9%8A%D8%AF%D8%B1%D9%88%D8%B3%D8%AA%D8%A7%D8%AA%D9%8A%D9%83%D9%8A" title="توازن هيدروستاتيكي – arabiera" lang="ar" hreflang="ar" data-title="توازن هيدروستاتيكي" data-language-autonym="العربية" data-language-local-name="arabiera" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A5%D0%B8%D0%B4%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D1%87%D0%BD%D0%BE_%D1%80%D0%B0%D0%B2%D0%BD%D0%BE%D0%B2%D0%B5%D1%81%D0%B8%D0%B5" title="Хидростатично равновесие – bulgariera" lang="bg" hreflang="bg" data-title="Хидростатично равновесие" data-language-autonym="Български" data-language-local-name="bulgariera" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Hidrostati%C4%8Dka_ravnote%C5%BEa" title="Hidrostatička ravnoteža – bosniera" lang="bs" hreflang="bs" data-title="Hidrostatička ravnoteža" data-language-autonym="Bosanski" data-language-local-name="bosniera" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Equilibri_hidroest%C3%A0tic" title="Equilibri hidroestàtic – katalana" lang="ca" hreflang="ca" data-title="Equilibri hidroestàtic" data-language-autonym="Català" data-language-local-name="katalana" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Hydrostatick%C3%A1_rovnov%C3%A1ha" title="Hydrostatická rovnováha – txekiera" lang="cs" hreflang="cs" data-title="Hydrostatická rovnováha" data-language-autonym="Čeština" data-language-local-name="txekiera" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Hydrostatisk_ligev%C3%A6gt" title="Hydrostatisk ligevægt – daniera" lang="da" hreflang="da" data-title="Hydrostatisk ligevægt" data-language-autonym="Dansk" data-language-local-name="daniera" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Hydrostatisches_Gleichgewicht" title="Hydrostatisches Gleichgewicht – alemana" lang="de" hreflang="de" data-title="Hydrostatisches Gleichgewicht" data-language-autonym="Deutsch" data-language-local-name="alemana" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A5%CE%B4%CF%81%CE%BF%CF%83%CF%84%CE%B1%CF%84%CE%B9%CE%BA%CE%AE_%CE%B9%CF%83%CE%BF%CF%81%CF%81%CE%BF%CF%80%CE%AF%CE%B1" title="Υδροστατική ισορροπία – greziera" lang="el" hreflang="el" data-title="Υδροστατική ισορροπία" data-language-autonym="Ελληνικά" data-language-local-name="greziera" 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/Hydrostatic_equilibrium" title="Hydrostatic equilibrium – ingelesa" lang="en" hreflang="en" data-title="Hydrostatic equilibrium" data-language-autonym="English" data-language-local-name="ingelesa" 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/Equilibrio_hidrost%C3%A1tico" title="Equilibrio hidrostático – gaztelania" lang="es" hreflang="es" data-title="Equilibrio hidrostático" data-language-autonym="Español" data-language-local-name="gaztelania" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AA%D8%B9%D8%A7%D8%AF%D9%84_%D9%87%DB%8C%D8%AF%D8%B1%D9%88%D8%A7%D8%B3%D8%AA%D8%A7%D8%AA%DB%8C%DA%A9%DB%8C" title="تعادل هیدرواستاتیکی – persiera" lang="fa" hreflang="fa" data-title="تعادل هیدرواستاتیکی" data-language-autonym="فارسی" data-language-local-name="persiera" 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/%C3%89quilibre_hydrostatique" title="Équilibre hydrostatique – frantsesa" lang="fr" hreflang="fr" data-title="Équilibre hydrostatique" data-language-autonym="Français" data-language-local-name="frantsesa" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A9%D7%99%D7%95%D7%95%D7%99_%D7%9E%D7%A9%D7%A7%D7%9C_%D7%94%D7%99%D7%93%D7%A8%D7%95%D7%A1%D7%98%D7%98%D7%99" title="שיווי משקל הידרוסטטי – hebreera" lang="he" hreflang="he" data-title="שיווי משקל הידרוסטטי" data-language-autonym="עברית" data-language-local-name="hebreera" class="interlanguage-link-target"><span>עברית</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%A4%B8%E0%A5%8D%E0%A4%A5%E0%A5%88%E0%A4%A4%E0%A4%BF%E0%A4%95_%E0%A4%B8%E0%A4%82%E0%A4%A4%E0%A5%81%E0%A4%B2%E0%A4%A8" title="द्रवस्थैतिक संतुलन – hindia" lang="hi" hreflang="hi" data-title="द्रवस्थैतिक संतुलन" data-language-autonym="हिन्दी" data-language-local-name="hindia" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%80%D5%AB%D5%A4%D6%80%D5%B8%D5%BD%D5%BF%D5%A1%D5%BF%D5%AB%D5%AF_%D5%B0%D5%A1%D5%BE%D5%A1%D5%BD%D5%A1%D6%80%D5%A1%D5%AF%D5%B7%D5%BC%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Հիդրոստատիկ հավասարակշռություն – armeniera" lang="hy" hreflang="hy" data-title="Հիդրոստատիկ հավասարակշռություն" data-language-autonym="Հայերեն" data-language-local-name="armeniera" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Keseimbangan_hidrostatis" title="Keseimbangan hidrostatis – indonesiera" lang="id" hreflang="id" data-title="Keseimbangan hidrostatis" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiera" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Nkwado_mmiri" title="Nkwado mmiri – igboera" lang="ig" hreflang="ig" data-title="Nkwado mmiri" data-language-autonym="Igbo" data-language-local-name="igboera" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Equilibrio_idrostatico" title="Equilibrio idrostatico – italiera" lang="it" hreflang="it" data-title="Equilibrio idrostatico" data-language-autonym="Italiano" data-language-local-name="italiera" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E9%9D%99%E6%B0%B4%E5%9C%A7%E5%B9%B3%E8%A1%A1" title="静水圧平衡 – japoniera" lang="ja" hreflang="ja" data-title="静水圧平衡" data-language-autonym="日本語" data-language-local-name="japoniera" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D0%BA%D0%B0%D0%BB%D1%8B%D2%9B_%D1%82%D0%B5%D0%BF%D0%B5-%D1%82%D0%B5%D2%A3%D0%B4%D1%96%D0%BA" title="Гидростатикалық тепе-теңдік – kazakhera" lang="kk" hreflang="kk" data-title="Гидростатикалық тепе-теңдік" data-language-autonym="Қазақша" data-language-local-name="kazakhera" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%95%EC%97%AD%ED%95%99%EC%A0%81_%ED%8F%89%ED%98%95" title="정역학적 평형 – koreera" lang="ko" hreflang="ko" data-title="정역학적 평형" data-language-autonym="한국어" data-language-local-name="koreera" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Hydrostatisch_evenwicht" title="Hydrostatisch evenwicht – nederlandera" lang="nl" hreflang="nl" data-title="Hydrostatisch evenwicht" data-language-autonym="Nederlands" data-language-local-name="nederlandera" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Hydrostatisk_likevekt" title="Hydrostatisk likevekt – nynorsk (norvegiera)" lang="nn" hreflang="nn" data-title="Hydrostatisk likevekt" data-language-autonym="Norsk nynorsk" data-language-local-name="nynorsk (norvegiera)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Hydrostatisk_likevekt" title="Hydrostatisk likevekt – bokmål (norvegiera)" lang="nb" hreflang="nb" data-title="Hydrostatisk likevekt" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål (norvegiera)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/R%C3%B3wnowaga_hydrostatyczna" title="Równowaga hydrostatyczna – poloniera" lang="pl" hreflang="pl" data-title="Równowaga hydrostatyczna" data-language-autonym="Polski" data-language-local-name="poloniera" 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/Equil%C3%ADbrio_hidrost%C3%A1tico" title="Equilíbrio hidrostático – portugesa" lang="pt" hreflang="pt" data-title="Equilíbrio hidrostático" data-language-autonym="Português" data-language-local-name="portugesa" 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/Echilibru_hidrostatic" title="Echilibru hidrostatic – errumaniera" lang="ro" hreflang="ro" data-title="Echilibru hidrostatic" data-language-autonym="Română" data-language-local-name="errumaniera" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B5_%D1%80%D0%B0%D0%B2%D0%BD%D0%BE%D0%B2%D0%B5%D1%81%D0%B8%D0%B5" title="Гидростатическое равновесие – errusiera" lang="ru" hreflang="ru" data-title="Гидростатическое равновесие" data-language-autonym="Русский" data-language-local-name="errusiera" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Hidrostati%C4%8Dka_ravnote%C5%BEa" title="Hidrostatička ravnoteža – serbokroaziera" lang="sh" hreflang="sh" data-title="Hidrostatička ravnoteža" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroaziera" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Hydrostatic_equilibrium" title="Hydrostatic equilibrium – Simple English" lang="en-simple" hreflang="en-simple" data-title="Hydrostatic equilibrium" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Hydrostatick%C3%A1_rovnov%C3%A1ha" title="Hydrostatická rovnováha – eslovakiera" lang="sk" hreflang="sk" data-title="Hydrostatická rovnováha" data-language-autonym="Slovenčina" data-language-local-name="eslovakiera" 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/Hidrostati%C4%8Dno_ravnovesje" title="Hidrostatično ravnovesje – esloveniera" lang="sl" hreflang="sl" data-title="Hidrostatično ravnovesje" data-language-autonym="Slovenščina" data-language-local-name="esloveniera" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A5%D0%B8%D0%B4%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D1%87%D0%BA%D0%B0_%D1%80%D0%B0%D0%B2%D0%BD%D0%BE%D1%82%D0%B5%D0%B6%D0%B0" title="Хидростатичка равнотежа – serbiera" lang="sr" hreflang="sr" data-title="Хидростатичка равнотежа" data-language-autonym="Српски / srpski" data-language-local-name="serbiera" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Hydrostatisk_j%C3%A4mvikt" title="Hydrostatisk jämvikt – suediera" lang="sv" hreflang="sv" data-title="Hydrostatisk jämvikt" data-language-autonym="Svenska" data-language-local-name="suediera" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%A0%E0%B8%B2%E0%B8%A7%E0%B8%B0%E0%B8%AA%E0%B8%A1%E0%B8%94%E0%B8%B8%E0%B8%A5%E0%B8%AD%E0%B8%B8%E0%B8%97%E0%B8%81%E0%B8%AA%E0%B8%96%E0%B8%B4%E0%B8%95" title="สภาวะสมดุลอุทกสถิต – thailandiera" lang="th" hreflang="th" data-title="สภาวะสมดุลอุทกสถิต" data-language-autonym="ไทย" data-language-local-name="thailandiera" 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/Hidrostatik_denge" title="Hidrostatik denge – turkiera" lang="tr" hreflang="tr" data-title="Hidrostatik denge" data-language-autonym="Türkçe" data-language-local-name="turkiera" 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%93%D1%96%D0%B4%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D1%87%D0%BD%D0%B0_%D1%80%D1%96%D0%B2%D0%BD%D0%BE%D0%B2%D0%B0%D0%B3%D0%B0" title="Гідростатична рівновага – ukrainera" lang="uk" hreflang="uk" data-title="Гідростатична рівновага" data-language-autonym="Українська" data-language-local-name="ukrainera" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/C%C3%A2n_b%E1%BA%B1ng_th%E1%BB%A7y_t%C4%A9nh" title="Cân bằng thủy tĩnh – vietnamera" lang="vi" hreflang="vi" data-title="Cân bằng thủy tĩnh" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamera" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%B5%81%E9%AB%94%E9%9D%9C%E5%8A%9B%E5%B9%B3%E8%A1%A1" title="流體靜力平衡 – txinera" lang="zh" hreflang="zh" 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id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="eu" dir="ltr"><p><b>Oreka hidrostatikoa</b> <a href="/wiki/Presio" title="Presio">presioaren</a> <a href="/wiki/Gradiente" title="Gradiente">gradiente</a> bertikalaren indarra eta <a href="/wiki/Grabitazio" title="Grabitazio">grabitatea</a> orekan daudenean <a href="/wiki/Jariakin" class="mw-redirect" title="Jariakin">fluido</a> batek duen egoera da. </p><p>Matematikoki oreka hidrostatikoa honela adierazten da: </p> <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 {\frac {\partial P}{\partial z}}=-\rho g}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi mathvariant="normal">∂</mi> <mi>P</mi> </mrow> <mrow> <mi mathvariant="normal">∂</mi> <mi>z</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mo>−</mo> <mi>ρ</mi> <mi>g</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {\partial P}{\partial z}}=-\rho g}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9bae4cb3b32784b083c25b906cb6d3059b082e45" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:11.124ex; height:5.509ex;" alt="{\displaystyle {\frac {\partial P}{\partial z}}=-\rho g}"></span></dd></dl> <p>non <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 P}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>P</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b4dc73bf40314945ff376bd363916a738548d40a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.745ex; height:2.176ex;" alt="{\displaystyle P}"></span> fluidoaren presioa den, <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 z}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>z</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle z}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/bf368e72c009decd9b6686ee84a375632e11de98" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.088ex; height:1.676ex;" alt="{\displaystyle z}"></span> koordenatu bertikala, <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 \rho }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f7d439671d1289b6a816e6af7a304be40608d64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.202ex; height:2.176ex;" alt="{\displaystyle \rho }"></span> fluidoaren <a href="/wiki/Dentsitate_(argipena)" class="mw-disambig" title="Dentsitate (argipena)">dentsitatea</a> eta <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 g}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>g</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle g}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d3556280e66fe2c0d0140df20935a6f057381d77" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:1.116ex; height:2.009ex;" alt="{\displaystyle g}"></span> grabitatearen <a href="/wiki/Azelerazio" title="Azelerazio">azelerazioa</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Oreka_hidrostatikoa_planetak_definitzeko">Oreka hidrostatikoa planetak definitzeko</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Oreka_hidrostatiko&veaction=edit&section=1" title="Aldatu atal hau: «Oreka hidrostatikoa planetak definitzeko»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Oreka_hidrostatiko&action=edit&section=1" title="Edit section's source code: Oreka hidrostatikoa planetak definitzeko"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Gorputzaren <a href="/wiki/Grabitazio" title="Grabitazio">grabitazioak</a> eragindako barne-presio nahikoa izanez gero, gorputza <a href="/wiki/Plastizitate" class="mw-redirect" title="Plastizitate">plastiko</a> bihurtuko da, eta plastikotasun nahikoa izanez gero, goragune altuak hondoratu eta baoak beteko dira, grabitazio-erlaxazioa deritzon prozesu bat. Kilometro gutxi batzuetatik beherako gorputzetan grabitaziokoak ez diren indarrak dira nagusi, forma irregularra dute eta hondakin piloak izan daitezke. Objektu handienek, non grabitazioa garrantzitsua den, baina ez dominatzailea, "<a href="/wiki/Patata" title="Patata">patata</a>" itxura dute; gorputza zenbat eta masiboagoa izan, orduan eta barne-presio handiagoa, orduan eta sendoagoa eta biribilagoa dute forma, harik eta presioa nahikoa den arte barne-konpresioko indarra gainditzeko eta <a class="mw-selflink selflink">oreka hidrostatikoa</a> lortzen duen arte. Puntu honetan, gorputz bat ahalik eta biribilena da, bere errotazioa eta mareen efektuak kontuan hartuta, eta <a href="/wiki/Elipsoide" title="Elipsoide">elipsoide</a> forma du. Hau da planeta nano bat definitzen duen muga<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. </p><p>Objektu bat oreka hidrostatikoan dagoenean, bere azalera estaltzen duen likido-geruza global batek azalera likidoa osatuko luke, gorputzaren modu berean, eskala txikiko gainazal-ezaugarriez gain, hala nola <a href="/wiki/Krater" title="Krater">kraterrak</a> eta pitzadurak. Gorputza biratzen ez bada, esfera bat izango da, baina zenbat eta azkarrago biratu, orduan eta oblato edo eskalenoa handiagoa izango da. Biratzen ari den mota horretako gorputz bat urtu arte berotuko balitz, haren forma orokorra ez litzateke aldatuko. Bere errotazio azkarraren ondorioz eskalenoa izan daitekeen gorputz baten muturreko adibidea <a href="/wiki/Haumea_(planeta_nanoa)" title="Haumea (planeta nanoa)">Haumea</a> da, bere ardatz nagusian poloetan baino bi aldiz luzeagoa dena. Gorputzak hurbileko kide masibo bat badu, marea-indarren ondorioz, pixkanaka moteldu egiten da haren errotazioa, pixkanaka blokeatu arte, kideari beti aurpegi bera izan diezaion. Muturreko adibide bat Pluton-Karonte sistema da, non gorputz bakoitza blokeatuta dagoen mareen ondorioz. Mareen blokeoa duten gorputzak ere eskalenoak dira, nahiz eta batzuetan apur bat besterik ez izan. Lurraren Ilargia mareek blokeatzen dute, erraldoi gaseosoen satelite biribil guztiek bezala. </p><p>Ez dago planeta nanoen tamaina- edo masa-muga espezifikorik, ez baitira ezaugarri definitzaileak. Ez dago goiko muga argirik: <a href="/wiki/Eguzki_Sistema" class="mw-redirect" title="Eguzki Sistema">Eguzki Sistemaren</a> mugetan Merkurio planeta baino handiagoa edo masiboagoa den objektu batek ez zezakeen behar adina denbora izan bere orbitaren auzotasuna garbitzeko; horrelako gorputz bat planeta nanoaren definizioan sartuko litzateke planetaren ordez. Beheko muga oreka hidrostatikoa lortzeko eta mantentzeko baldintzek zehazten dute, baina objektu batek oreka lortzen duen eta bertan mantentzen den tamaina edo masa bere konposizioaren eta historia termikoaren araberakoa da, ez soilik bere masaren araberakoa. 2006ko IAUren prentsa-ohar baten arabera, 0,5 × 10<sup>21</sup> kg-tik gorako masa eta 400 km-tik gorako erradioa (800 km-ko diametroa) duten objektuak oreka hidrostatikoan egongo lirateke "normalean" ("forma... autograbitateak zehaztuko luke normalean"), baina "muga-kasu guztiak behaketak zehaztuko lituzke." Hau, 2019tik aurrera, <a href="/wiki/Neptunoz_haraindiko_objektu" title="Neptunoz haraindiko objektu">Neptunoz haraindiko objektuentzako</a> gutxi gorabeherako muga dela uste denetik hurbil dago, gorputz solido erabat trinkoak baitira, <a href="/w/index.php?title=Salazia_(planeta_nanoa)&action=edit&redlink=1" class="new" title="Salazia (planeta nanoa) (sortu gabe)">Salaziarekin</a> (r = 423 ± 11 km, m = (0,492 ± 0,007) × 10<sup>21</sup> km) eta, ziur aski, <a href="/w/index.php?title=2002_MS4&action=edit&redlink=1" class="new" title="2002 MS4 (sortu gabe)">2002 MS4rekin</a> (r = 400 ± 12 km, m ezezaguna), eta muga-kasuak dira, <a href="/wiki/(90482)_Orko" title="(90482) Orko">Orkus</a> izan daitekeena bezala<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. Masa neurtua duen beste gorputz bat ere ez da espero den masa-mugara hurbiltzen, nahiz eta masa neurturik gabeko batzuk espero den tamaina-mugara hurbiltzen diren. </p> <div class="mw-heading mw-heading2"><h2 id="Erreferentziak">Erreferentziak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Oreka_hidrostatiko&veaction=edit&section=2" title="Aldatu atal hau: «Erreferentziak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Oreka_hidrostatiko&action=edit&section=2" title="Edit section's source code: Erreferentziak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFLineweaverNorman2010-04-07">Lineweaver, Charles H.; Norman, Marc.  (2010-04-07). <a rel="nofollow" class="external text" href="http://arxiv.org/abs/1004.1091">«The Potato Radius: a Lower Minimum Size for Dwarf Planets»</a> <i>arXiv:1004.1091 [astro-ph, physics:physics]</i> <span class="reference-accessdate"><small>(Noiz kontsultatua: 2022-06-25)</small></span></span>.</span> </li> <li id="cite_note-2"><a href="#cite_ref-2">↑</a> <span class="reference-text"><span class="citation"> <span style="cursor: help; font-size: 90%; font-family: bold; color: gray" title="Ingelesez dago aipu honen iturburua"><b>(Ingelesez)</b></span></span> <span class="citation" id="CITEREFGrundyNollBuieBenecchi2019-12-01">Grundy, W. M.; Noll, K. S.; Buie, M. W.; Benecchi, S. D.; Ragozzine, D.; Roe, H. G..  (2019-12-01). <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/science/article/pii/S0019103518306286">«The mutual orbit, mass, and density of transneptunian binary Gǃkúnǁ'hòmdímà (229762 2007 UK126)»</a> <i>Icarus</i> 334: 30–38.  <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<span class="neverexpand"><a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.icarus.2018.12.037">10.1016/j.icarus.2018.12.037</a></span>. <a href="/wiki/International_Standard_Serial_Number" class="mw-redirect" title="International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="http://worldcat.org/issn/0019-1035">0019-1035</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2022-06-25)</small></span></span>.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Kanpo_estekak">Kanpo estekak</h2><span class="mw-editsection"><span 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