{"id":22788,"date":"2022-10-30T23:27:55","date_gmt":"2022-10-30T23:27:55","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=22788"},"modified":"2022-10-31T01:37:55","modified_gmt":"2022-10-31T01:37:55","slug":"o-diametro-da-estrela-gigante-antares","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=22788","title":{"rendered":"O di\u00e2metro da estrela gigante Antares"},"content":{"rendered":"\n<p><ul id='GTTabs_ul_22788' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_22788' class='GTTabs_curr'><a  id=\"22788_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_22788' ><a  id=\"22788_1\" onMouseOver=\"GTTabsShowLinks('Resolu\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Resolu\u00e7\u00e3o<\/a><\/li>\n<li id='GTTabs_li_2_22788' ><a  id=\"22788_2\" onMouseOver=\"GTTabsShowLinks('Retifica\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Retifica\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n\n<div class='GTTabs_divs GTTabs_curr_div' id='GTTabs_0_22788'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<p>O di\u00e2metro da estrela gigante Antares \u00e9 <span style=\"color: #ff0000;\">\\(3,3 \\times {10^3}\\)<\/span> <sup>(1)<\/sup> km e o raio do Sol \u00e9 \\(696\\,000\\) km.<\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li>Escreve o di\u00e2metro do Sol em nota\u00e7\u00e3o cient\u00edfica.<\/li>\n<li>Indica a ordem de grandeza do di\u00e2metro da estrela gigante Antares e do Sol.<\/li>\n<li>Compara as dimens\u00f5es das duas estrelas.<\/li>\n<li>Quantas vezes o di\u00e2metro do Sol \u00e9 maior do que o di\u00e2metro da estrela gigante Antares?<\/li>\n<\/ol>\n<p style=\"font-size: 14px;\"><sup>(1)<\/sup> O valor indicado para di\u00e2metro de Antares n\u00e3o est\u00e1 correto, pois a estrela Antares \u00e9 bem maior do que o Sol.<br \/>Para conhecer um valor mais pr\u00f3ximo da sua ordem de grandeza: <a href=\"https:\/\/w3ask.com\/size-comparison-antares-vs-sun\/\" target=\"_blank\" rel=\"noopener\">https:\/\/w3ask.com\/size-comparison-antares-vs-sun\/<\/a><\/p>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_22788' onClick='GTTabs_show(1,22788)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_22788'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><\/p>\n<blockquote>\n<p>O di\u00e2metro da estrela gigante Antares \u00e9 <span style=\"color: #ff0000;\">\\(3,3 \\times {10^3}\\)<\/span> km e o raio do Sol \u00e9 \\(696\\,000\\) km.<\/p>\n<\/blockquote>\n<p>\u00a0<\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li>Em nota\u00e7\u00e3o cient\u00edfica, o di\u00e2metro do Sol \u00e9 \\(2 \\times 6,96 \\times {10^5} = 1,392 \\times {10^6}\\)\u00a0km.<br \/><br \/><\/li>\n<li>A ordem de grandeza do di\u00e2metro da estrela gigante Antares \u00e9 \\({10^3}\\) e a do Sol \u00e9 \\({10^6}\\).<br \/><br \/><\/li>\n<li>A estrela Antares \u00e9 de menor dimens\u00e3o do que o Sol.<br \/><br \/><\/li>\n<li>O di\u00e2metro do Sol \u00e9 maior que o di\u00e2metro da estrela gigante Antares aproximadamente \\(4,22 \\times {10^2}\\) vezes.<br \/>\\(\\frac{{{d_S}}}{{{d_A}}} = \\frac{{1,392 \\times {{10}^6}}}{{3,3 \\times {{10}^3}}} = \\frac{{1,392}}{{3,3}} \\times \\frac{{{{10}^6}}}{{{{10}^3}}} \\approx 0,422 \\times {10^3} = 4,22 \\times {10^2}\\)<\/li>\n<\/ol>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_22788' onClick='GTTabs_show(0,22788)'>&lt;&lt; Enunciado<\/a><\/span><span class='GTTabs_nav_next'><a href='#GTTabs_ul_22788' onClick='GTTabs_show(2,22788)'>Retifica\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_2_22788'>\n<span class='GTTabs_titles'><b>Retifica\u00e7\u00e3o<\/b><\/span><\/p>\n<p>O di\u00e2metro da estrela gigante Antares \u00e9 <span style=\"color: #0000ff;\">\\(9,46 \\times {10^8}\\)<\/span>\u00a0<sup>(2)<\/sup> km e o raio do Sol \u00e9 \\(696\\,000\\) km.<\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li>Escreve o di\u00e2metro do Sol em nota\u00e7\u00e3o cient\u00edfica.<\/li>\n<li>Indica a ordem de grandeza do di\u00e2metro da estrela gigante Antares e do Sol.<\/li>\n<li>Compara as dimens\u00f5es das duas estrelas.<\/li>\n<li>Quantas vezes o di\u00e2metro do Sol \u00e9 <del>maior<\/del> menor do que o di\u00e2metro da estrela gigante Antares?<\/li>\n<\/ol>\n<p><sup>(2)<\/sup> Fonte: <a href=\"https:\/\/w3ask.com\/size-comparison-antares-vs-sun\/\" target=\"_blank\" rel=\"noopener\">https:\/\/w3ask.com\/size-comparison-antares-vs-sun\/<\/a><\/p>\n<p>\u00a0<\/p>\n<h6>Resolu\u00e7\u00e3o<\/h6>\n<blockquote>\n<p>O di\u00e2metro da estrela gigante Antares \u00e9 <span style=\"color: #0000ff;\">\\(9,46 \\times {10^8}\\)<\/span> km e o raio do Sol \u00e9 \\(696\\,000\\) km.<\/p>\n<\/blockquote>\n<p>\u00a0<\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li>Em nota\u00e7\u00e3o cient\u00edfica, o di\u00e2metro do Sol \u00e9 \\(2 \\times 6,96 \\times {10^5} = 1,392 \\times {10^6}\\)\u00a0km.<br \/><br \/><\/li>\n<li>A ordem de grandeza do di\u00e2metro da estrela gigante Antares \u00e9 \\({10^8}\\) e a do Sol \u00e9 \\({10^6}\\).<br \/><br \/><\/li>\n<li>A estrela Antares \u00e9 de maior dimens\u00e3o do que o Sol.<br \/><br \/><\/li>\n<li>O di\u00e2metro da estrela gigante Antares \u00e9 maior que o di\u00e2metro do Sol aproximadamente \\(6,80 \\times {10^2}\\) vezes.<br \/>\\(\\frac{{{d_A}}}{{{d_S}}} = \\frac{{9,46 \\times {{10}^8}}}{{1,392 \\times {{10}^6}}} = \\frac{{9,46}}{{1,392}} \\times \\frac{{{{10}^8}}}{{{{10}^6}}} \\approx 6,80 \\times {10^2}\\)<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-gestor-de-incorporacoes wp-block-embed-gestor-de-incorporacoes\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"fb-post\" data-href=\"https:\/\/www.facebook.com\/Astrotrips\/photos\/a.159847494222345\/1428987657308316\/?type=3&#038;eid=ARDGzkbv67UmPYZAQ2WMCmoxOCrI_-yc9twIcVoHJ8iODDvNuIRLHO237GydaszB3JrQojsCBCS_I8va&#038;ifg=1\" data-width=\"552\" style=\"background-color: #fff; display: inline-block;\"><\/div>\n<\/div><\/figure>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_22788' onClick='GTTabs_show(1,22788)'>&lt;&lt; Resolu\u00e7\u00e3o<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Retifica\u00e7\u00e3o Enunciado O di\u00e2metro da estrela gigante Antares \u00e9 \\(3,3 \\times {10^3}\\) (1) km e o raio do Sol \u00e9 \\(696\\,000\\) km. Escreve o di\u00e2metro do Sol em nota\u00e7\u00e3o cient\u00edfica. Indica a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":22802,"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-22788","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":301,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2022\/10\/Antares-Sun_520x245_b.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/22788","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=22788"}],"version-history":[{"count":0,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/22788\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/22802"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22788"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=22788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}