{"id":16490,"date":"2024-09-19T19:52:03","date_gmt":"2024-09-19T22:52:03","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=16490"},"modified":"2024-09-19T19:52:05","modified_gmt":"2024-09-19T22:52:05","slug":"questao-107-enem-2020","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-107-enem-2020\/","title":{"rendered":"Quest\u00e3o 107 -ENEM 2020"},"content":{"rendered":"\n<p>A Torre Eiffel, com seus 324 metros de altura, feita com treli\u00e7as de ferro, pesava 7 300 toneladas quando terminou de ser constru\u00edda em 1889. Um arquiteto resolve construir um prot\u00f3tipo dessa torre em escala 1:100, usando os mesmos materiais (cada dimens\u00e3o linear em escala de 1:100 do monumento real). Considere que a torre real tenha uma massa M<sub>torre<\/sub> e exer\u00e7a na funda\u00e7\u00e3o sobre a qual foi erguida uma press\u00e3o P<sub>torre<\/sub>. O modelo constru\u00eddo pelo arquiteto ter\u00e1 uma massa M<sub>modelo<\/sub> e exercer\u00e1 uma press\u00e3o P<sub>modelo<\/sub>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"328\" height=\"358\" src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-444.png\" alt=\"\" class=\"wp-image-16497\" title=\"\" srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-444.png 328w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-444-275x300.png 275w\" sizes=\"(max-width: 328px) 100vw, 328px\" \/><\/figure>\n\n\n\n<p>Como a press\u00e3o exercida pela torre se compara com a press\u00e3o exercida pelo prot\u00f3tipo? Ou seja, qual \u00e9 a raz\u00e3o entre as press\u00f5es (P<sub>torre<\/sub>)\/(P<sub>modelo<\/sub>) ?&nbsp;<\/p>\n\n\n\n<p>A) 100<\/p>\n\n\n\n<p>B) 101&nbsp;<\/p>\n\n\n\n<p>C) 102&nbsp;<\/p>\n\n\n\n<p>D) 104&nbsp;<\/p>\n\n\n\n<p>E) 106<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p>A press\u00e3o pode ser calculada utilizando a seguinte equa\u00e7\u00e3o<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"71\" height=\"38\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-438.png\" alt=\"\" class=\"wp-image-16491 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 71px; --smush-placeholder-aspect-ratio: 71\/38;\"><\/figure>\n\n\n\n<p>Em que P \u00e9 a press\u00e3o, m a massa, g a acelera\u00e7\u00e3o da gravidade e A a \u00e1rea. Tamb\u00e9m, \u00e9 poss\u00edvel descrever a massa pela sua densidade e volume<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"110\" height=\"38\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-439.png\" alt=\"\" class=\"wp-image-16492 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 110px; --smush-placeholder-aspect-ratio: 110\/38;\"><\/figure>\n\n\n\n<p>Dessa forma,&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"205\" height=\"178\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-440.png\" alt=\"\" class=\"wp-image-16493 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 205px; --smush-placeholder-aspect-ratio: 205\/178;\"><\/figure>\n\n\n\n<p>Como o Volume pode ser descrito em fun\u00e7\u00e3o da \u00e1rea, ent\u00e3o<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"93\" height=\"34\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-441.png\" alt=\"\" class=\"wp-image-16494 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 93px; --smush-placeholder-aspect-ratio: 93\/34;\"><\/figure>\n\n\n\n<p>Logo<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"204\" height=\"213\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-442.png\" alt=\"\" class=\"wp-image-16495 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 204px; --smush-placeholder-aspect-ratio: 204\/213;\"><\/figure>\n\n\n\n<p>Como a escala \u00e9 de 1:100 a altura de 324m da torre fica com 3,24 m no modelo<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"178\" height=\"50\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-443.png\" alt=\"\" class=\"wp-image-16496 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 178px; --smush-placeholder-aspect-ratio: 178\/50;\"><\/figure>\n\n\n\n<p><strong>Alternativa A<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Torre Eiffel, com seus 324 metros de altura, feita com treli\u00e7as de ferro, pesava 7 300 toneladas quando terminou de ser constru\u00edda em 1889. Um arquiteto resolve construir um prot\u00f3tipo dessa torre em escala 1:100, usando os mesmos materiais (cada dimens\u00e3o linear em escala de 1:100 do monumento real). Considere que a torre real [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":16497,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,20],"tags":[],"area-do-conhecimento":[116,121],"assunto":[],"class_list":["post-16490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-questoes-do-enem","category-20","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-fisica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=16490"}],"version-history":[{"count":1,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16490\/revisions"}],"predecessor-version":[{"id":16498,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16490\/revisions\/16498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media\/16497"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=16490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=16490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=16490"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=16490"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=16490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}