{"id":22813,"date":"2022-10-31T18:12:52","date_gmt":"2022-10-31T18:12:52","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=22813"},"modified":"2026-04-24T20:03:45","modified_gmt":"2026-04-24T19:03:45","slug":"a-massa-do-sol","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=22813","title":{"rendered":"A massa do Sol"},"content":{"rendered":"\n<p><ul id='GTTabs_ul_22813' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_22813' class='GTTabs_curr'><a  id=\"22813_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_22813' ><a  id=\"22813_1\" onMouseOver=\"GTTabsShowLinks('Resolu\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Resolu\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n\n<div class='GTTabs_divs GTTabs_curr_div' id='GTTabs_0_22813'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<p>A massa do Sol \u00e9 cerca de \\(310\\,000\\) vezes maior do que a da Terra, sendo esta de \\(5,98 \\times {10^{21}}\\) t.<\/p>\n<p>Escreve, em nota\u00e7\u00e3o cient\u00edfica, o valor da massa do Sol, em quilogramas.<\/p>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_22813' onClick='GTTabs_show(1,22813)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_22813'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><!--more--><\/p>\n<blockquote>\n<p>A massa do Sol \u00e9 cerca de \\(310\\,000\\) vezes maior do que a da Terra, sendo esta de \\(5,98 \\times {10^{21}}\\) t.<\/p>\n<p>Escreve, em nota\u00e7\u00e3o cient\u00edfica, o valor da massa do Sol, em quilogramas.<\/p>\n<\/blockquote>\n<p>Comecemos por reduzir a massa da Terra de tonelada a quilograma:<br \/>\\[{m_T} = 5,98 \\times {10^{21}}\\;t = 5,98 \\times {10^{21}} \\times {10^3}\\;kg = 5,98 \\times {10^{24}}\\;kg\\]<\/p>\n<p>A massa do Sol \u00e9 \\(1,8538 \\times {10^{30}}\\;kg\\).<br \/>Com efeito, temos:<br \/>\\[{m_S} = 310\\,000 \\times 5,98 \\times {10^{24}}\\;kg = 3,1 \\times {10^5} \\times 5,98 \\times {10^{24}}\\;kg = 18,538 \\times {10^{29}}\\;kg = 1,8538 \\times {10^{30}}\\;kg\\]<\/p>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_22813' onClick='GTTabs_show(0,22813)'>&lt;&lt; Enunciado<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Enunciado A massa do Sol \u00e9 cerca de \\(310\\,000\\) vezes maior do que a da Terra, sendo esta de \\(5,98 \\times {10^{21}}\\) t. Escreve, em nota\u00e7\u00e3o cient\u00edfica, o valor da massa do&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":19180,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[100,97,664],"tags":[424,143],"series":[],"class_list":["post-22813","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-8--ano","category-aplicando","category-numeros-reais","tag-8-o-ano","tag-notacao-cientifica"],"views":242,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2021\/12\/Mat71.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/22813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22813"}],"version-history":[{"count":1,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/22813\/revisions"}],"predecessor-version":[{"id":27702,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/22813\/revisions\/27702"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/19180"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22813"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=22813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}