{"id":750,"date":"2015-05-12T20:42:36","date_gmt":"2015-05-12T20:42:36","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=750"},"modified":"2024-09-02T17:15:24","modified_gmt":"2024-09-02T17:15:24","slug":"exercicios-resolvidos-acafe-medicina-2015","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2015\/exercicios-resolvidos-acafe-medicina-2015\/","title":{"rendered":"Exerc\u00edcios Resolvidos ACAFE – medicina 2015"},"content":{"rendered":"

\"\"<\/p>\n

Em 1974, os presidentes das funda\u00e7\u00f5es criadas por lei municipal e da funda\u00e7\u00e3o criada pelo Estado constitu\u00edram a ACAFE \u2013 Associa\u00e7\u00e3o Catarinense das Funda\u00e7\u00f5es Educacionais, entidade sem fins lucrativos, com a miss\u00e3o de promover a integra\u00e7\u00e3o dos esfor\u00e7os de consolida\u00e7\u00e3o das institui\u00e7\u00f5es de ensino superior por elas mantidas, de executar atividades de suporte t\u00e9cnico-operacional e de represent\u00e1-las junto aos \u00f3rg\u00e3os dos Governos Estadual e Federal.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

 <\/p>\n\n\n<\/colgroup>\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\"\"<\/p>\n

01-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Em uma <\/b><\/span><\/span><\/span>superf\u00edcie reta de comprimento x<\/b><\/span><\/span><\/span> que forma um <\/b><\/span><\/span><\/span>\u00e2ngulo \u03b8 com a horizontal<\/b><\/span><\/span><\/span>, um <\/b><\/span><\/span><\/span>corpo <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

desliza em um <\/b><\/span><\/span><\/span>MRUV.<\/b><\/span><\/span><\/span> Sabendo-se que o <\/b><\/span><\/span><\/span>coeficiente de atrito cin\u00e9tico \u00e9 \u00b5 e o corpo parte do repouso<\/b><\/span><\/span><\/span>, a <\/b><\/span><\/span><\/span>alternativa correta<\/b><\/span><\/span><\/span> que indica o <\/b><\/span><\/span><\/span>tempo gasto para o corpo percorrer o comprimento x<\/b><\/span><\/span><\/span> \u00e9: <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

02-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Em <\/b><\/span><\/span><\/span>laborat\u00f3rios cl\u00ednicos<\/b><\/span><\/span><\/span> s\u00e3o utilizadas <\/b><\/span><\/span><\/span>centr\u00edfugas<\/b><\/span><\/span><\/span> (lembre-se que a <\/b><\/span><\/span><\/span>for\u00e7a necess\u00e1ria<\/b><\/span><\/span><\/span> para o <\/b><\/span><\/span><\/span>movimento circular \u00e9 a for\u00e7a centr\u00edpeta<\/b><\/span><\/span><\/span>) que <\/b><\/span><\/span><\/span>giram em alta rota\u00e7\u00e3o para separar as partes s\u00f3lida e l\u00ed-<\/b><\/span><\/span><\/span> <\/b>quida do sangue<\/b><\/span><\/span><\/span>. A <\/b><\/span><\/span><\/span>figura abaixo<\/b><\/span><\/span><\/span> representa um modelo simples de centr\u00edfuga que utiliza <\/b><\/span><\/span><\/span>dois tubos<\/b><\/span><\/span><\/span> <\/b><\/p>\n

\"\"<\/p>\n

de sangue<\/b><\/span><\/span><\/span> ao mesmo tempo, em um <\/b><\/span><\/span><\/span>movimento circular uniforme<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span>Analise<\/b><\/span><\/span><\/span> as <\/b><\/span><\/span><\/span>suposi\u00e7\u00f5es<\/b><\/span><\/span><\/span> <\/b>levantadas<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

l. <\/b><\/span><\/span><\/span> A <\/b><\/span><\/span><\/span>velocidade angular<\/b><\/span><\/span><\/span> desse movimento \u00e9 <\/b><\/span><\/span><\/span>a mesma para todos os pontos dos tubos que cont\u00e9m o<\/b><\/span><\/span><\/span> <\/b>sangue<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

ll. <\/b><\/span><\/span><\/span> A <\/b><\/span><\/span><\/span>velocidade linear \u00e9 a mesma para todos os pontos dos tubos<\/b><\/span><\/span><\/span>, no entanto, a <\/b><\/span><\/span><\/span>velocidade angular \u00e9 diferente para esses pontos.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Ill. <\/b><\/span><\/span><\/span>As <\/b><\/span><\/span><\/span>partes s\u00f3lidas do sangue<\/b><\/span><\/span><\/span> (mais densas) <\/b><\/span><\/span><\/span>ficar\u00e3o na regi\u00e3o 2 e as partes l\u00edquidas<\/b><\/span><\/span><\/span> (menos densas) <\/b><\/span><\/span><\/span>na regi\u00e3o 1<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

lV . <\/b><\/span><\/span><\/span>As <\/b><\/span><\/span><\/span>partes s\u00f3lidas do sangue<\/b><\/span><\/span><\/span> (mais densas) <\/b><\/span><\/span><\/span>ficar\u00e3o na regi\u00e3o 1<\/b><\/span><\/span><\/span> e as <\/b><\/span><\/span><\/span>partes l\u00edquidas<\/b><\/span><\/span><\/span> (menos densas), <\/b><\/span><\/span><\/span>na regi\u00e3o 2.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

V. <\/b><\/span><\/span><\/span>Por ter <\/b><\/span><\/span><\/span>alta velocidade<\/b><\/span><\/span><\/span>, a <\/b><\/span><\/span><\/span>frequ\u00eancia de rota\u00e7\u00e3o \u00e9 alta e o per\u00edodo de rota\u00e7\u00e3o \u00e9 baixo<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

Todas as afirma\u00e7\u00f5es corretas<\/b><\/span><\/span><\/span> est\u00e3o em: <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

03-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Quando medimos nossa <\/b><\/span><\/span><\/span>press\u00e3o arterial<\/b><\/span><\/span><\/span> com o aparelho conhecido como <\/b><\/span><\/span><\/span>esfigmoman\u00f4metro<\/b><\/span><\/span><\/span>, e detectamos, por exemplo, o <\/b><\/span><\/span><\/span>valor de 11 por 7<\/b><\/span><\/span><\/span>, estamos sendo informados que nossa <\/b><\/span><\/span><\/span>press\u00e3o m\u00e1xima \u00e9 de 110 mmHg (\u224814000N\/m2 ) e a press\u00e3o m\u00ednima \u00e9 de 70 mmHg (\u22489210N\/m2<\/b><\/span><\/span><\/span> ) […]. Esse <\/b><\/span><\/span><\/span>valor utilizado como exemplo \u00e9 considerado como uma press\u00e3o sangu\u00ednea normal<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

Fonte: Mundo Educa\u00e7\u00e3o. Dispon\u00edvel em: http:\/\/www.mundoeducacao.com\/matematica\/ pressao-sanguinea.htm. Acesso em: 13 de abril de 2014. <\/b><\/span><\/span><\/span><\/p>\n

Considere um <\/b><\/span><\/span><\/span>paciente<\/b><\/span><\/span><\/span> com <\/b><\/span><\/span><\/span>press\u00e3o arterial normal<\/b><\/span><\/span><\/span> deitado em uma maca de <\/b><\/span><\/span><\/span>altura 70 cm do solo<\/b><\/span><\/span><\/span> que est\u00e1 <\/b><\/span><\/span><\/span>recebendo soro no bra\u00e7o<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Qual das <\/b><\/span><\/span><\/span>alternativas abaixo melhor representa a altura m\u00ednima<\/b><\/span><\/span><\/span> do solo que dever\u00e1 estar a <\/b><\/span><\/span><\/span>bolsa de<\/b><\/span><\/span><\/span> <\/b>soro para que possa vencer a press\u00e3o arterial m\u00e1xima?<\/b><\/span><\/span><\/span> Utilize o valor da <\/b><\/span><\/span><\/span>densidade do soro<\/b><\/span><\/span><\/span> igual ao valor da densidade <\/b><\/span><\/span><\/span>da \u00e1gua pura no estado l\u00edquido (10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>kg\/m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>) e a gravidade igual a 10 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

04-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>cora\u00e7\u00e3o humano <\/b><\/span><\/span><\/span>\u00e9 o \u00f3rg\u00e3o respons\u00e1vel pelo <\/b><\/span><\/span><\/span>percurso do sangue<\/b><\/span><\/span><\/span> <\/b>bombeado<\/b><\/span><\/span><\/span> atrav\u00e9s de todo o <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

organismo. Em baixa atividade <\/b><\/span><\/span><\/span>(BA),<\/b><\/span><\/span><\/span> o cora\u00e7\u00e3o gasta uma <\/b><\/span><\/span><\/span>energia E<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> para que uma <\/b><\/span><\/span><\/span>massa de 100g<\/b><\/span><\/span><\/span> de sangue adquira uma <\/b><\/span><\/span><\/span>velocidade de 20 cm\/s<\/b><\/span><\/span><\/span>. J\u00e1 em ritmo acelerado em alta atividade <\/b><\/span><\/span><\/span>(AA<\/b><\/span><\/span><\/span>), mais intensa, o cora\u00e7\u00e3o gasta uma <\/b><\/span><\/span><\/span>energia E<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> para que a <\/b><\/span><\/span><\/span>mesma quantidade de sangue<\/b><\/span><\/span><\/span> atinja uma <\/b><\/span><\/span><\/span>velocidade de 60 cm\/s<\/b><\/span><\/span><\/span>. Considere que em <\/b><\/span><\/span><\/span>ambos os casos<\/b><\/span><\/span><\/span>, o sangue <\/b><\/span><\/span><\/span>parta do repouso<\/b><\/span><\/span><\/span> e que <\/b><\/span><\/span><\/span>n\u00e3o h\u00e1<\/b><\/span><\/span><\/span> <\/b>perdas<\/b><\/span><\/span><\/span> no processo. Nessa situa\u00e7\u00e3o, assinale a <\/b><\/span><\/span><\/span>alternativa correta<\/b><\/span><\/span><\/span> que <\/b><\/span><\/span><\/span>completa a lacuna da frase a<\/b><\/span><\/span><\/span> <\/b>seguir:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Em <\/b><\/span><\/span><\/span>AA<\/b><\/span><\/span><\/span>, o cora\u00e7\u00e3o gasta uma energia <\/b><\/span><\/span><\/span>_____<\/b><\/span><\/span><\/span> vezes maior que em <\/b><\/span><\/span><\/span>BA<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

05-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Na <\/b><\/span><\/span><\/span>\u00e1rea m\u00e9dica<\/b><\/span><\/span><\/span>, o estudo das <\/b><\/span><\/span><\/span>c\u00e9lulas<\/b><\/span><\/span><\/span> tem um importante papel. Esse estudo, do ponto de vista <\/b><\/span><\/span><\/span>f\u00edsico e qu\u00edmico<\/b><\/span><\/span><\/span>, fornece i<\/b><\/span><\/span><\/span>nforma\u00e7\u00f5es <\/b><\/span><\/span><\/span>do funcionamento do corpo humano. O conhecimento dos <\/b><\/span><\/span><\/span>\u00edons <\/b><\/span><\/span><\/span>existentes nas paredes das <\/b><\/span><\/span><\/span>c\u00e9lulas<\/b><\/span><\/span><\/span>, por exemplo, <\/b><\/span><\/span><\/span>fornece informa\u00e7\u00f5es<\/b><\/span><\/span><\/span> que, tratadas pelos conhecimentos <\/b><\/span><\/span><\/span>f\u00edsicos<\/b><\/span><\/span><\/span>, podem ajudar a entender os <\/b><\/span><\/span><\/span>mecanismos<\/b><\/span><\/span><\/span> de funcionamento celular. Considere que h\u00e1 um <\/b><\/span><\/span><\/span>excesso de \u00edons positivos<\/b><\/span><\/span><\/span> na parede externa da membrana celular, e um <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

excesso de \u00edons negativos<\/b><\/span><\/span><\/span> na parede interna da mesma, ou seja, a membrana celular se comporta como um <\/b><\/span><\/span><\/span>capacitor el\u00e9trico<\/b><\/span><\/span><\/span> (placas paralelas eletrizadas com cargas de sinais opostos). Neste sentido<\/b><\/span><\/span><\/span>, assinale a alternativa correta.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

A \"\"<\/b><\/span><\/span><\/span> O <\/b><\/span><\/span><\/span>sentido<\/b><\/span><\/span><\/span> do <\/b><\/span><\/span><\/span>campo el\u00e9trico no interior<\/b><\/span><\/span><\/span> da membrana \u00e9 de <\/b><\/span><\/span><\/span>fora para dentro.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

B \"\"<\/b><\/span><\/span><\/span> Na <\/b><\/span><\/span><\/span>regi\u00e3o entre a parede externa e interna<\/b><\/span><\/span><\/span> (no interior da membrana celular) <\/b><\/span><\/span><\/span>o potencial \u00e9 nulo. <\/b><\/span><\/span><\/span><\/p>\n

C \"\"<\/b><\/span><\/span><\/span> O <\/b><\/span><\/span><\/span>potencial el\u00e9trico na parede externa<\/b><\/span><\/span><\/span> da membrana \u00e9 <\/b><\/span><\/span><\/span>menor do que o potencial el\u00e9trico na parede interna. <\/b><\/span><\/span><\/span><\/p>\n

D \"\"<\/b><\/span><\/span><\/span> O <\/b><\/span><\/span><\/span>campo el\u00e9trico no interior da membrana celular \u00e9 nulo.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

06-(ACAFE-SC-014)<\/b><\/span><\/span><\/span> <\/b><\/p>\n

\"\"<\/p>\n

Uma <\/b><\/span><\/span><\/span>seringa hipod\u00e9rmica<\/b><\/span><\/span><\/span> tem <\/b><\/span><\/span><\/span>\u00e1rea de sec\u00e7\u00e3o transversal de 3,0 cm<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> e a <\/b><\/span><\/span><\/span>agulha<\/b><\/span><\/span><\/span> da mesma, uma <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

sec\u00e7\u00e3o transversal de 0,5mm<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> . Em um procedimento, quando a <\/b><\/span><\/span><\/span>press\u00e3o sangu\u00ednea venosa<\/b><\/span><\/span><\/span> for de <\/b><\/span><\/span><\/span>13,5mmHg (\u22481800N\/m<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> ),<\/b><\/span><\/span><\/span> injeta-se um fluido na veia. A <\/b><\/span><\/span><\/span>alternativa correta<\/b><\/span><\/span><\/span> que indica a <\/b><\/span><\/span><\/span>for\u00e7a m\u00ednima<\/b><\/span><\/span><\/span>, <\/b><\/span><\/span><\/span>em newtons, imposta ao embolo da seringa, necess\u00e1ria para ocorrer tal procedimento<\/b><\/span><\/span><\/span> \u00e9:<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

07-(ACAFE-SC-014)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Na <\/b><\/span><\/span><\/span>\u00e1rea m\u00e9dica<\/b><\/span><\/span><\/span> s\u00e3o utilizadas as <\/b><\/span><\/span><\/span>radia\u00e7\u00f5es ionizantes<\/b><\/span><\/span><\/span> que possuem <\/b><\/span><\/span><\/span>diferentes<\/b><\/span><\/span><\/span> poder de penetra\u00e7\u00e3o e <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

ioniza\u00e7\u00e3o <\/b><\/span><\/span><\/span>nos tecidos<\/b><\/span><\/span><\/span> e podem agir <\/b><\/span><\/span><\/span>diretamente, como pr\u00f3tons e el\u00e9trons, radia\u00e7\u00e3o<\/b><\/span><\/span><\/span> <\/b>alfa, \u00edons pesados<\/b><\/span><\/span><\/span>, ou <\/b><\/span><\/span><\/span>indiretamente,<\/b><\/span><\/span><\/span> como os <\/b><\/span><\/span><\/span>raios X, raios gama e n\u00eautrons<\/b><\/span><\/span><\/span>. Nessa situa\u00e7\u00e3o, assinale a <\/b><\/span><\/span><\/span>alternativa correta que completa a lacuna da frase a seguir:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

As <\/b><\/span><\/span><\/span>blindagens<\/b><\/span><\/span><\/span> para <\/b><\/span><\/span><\/span>cada um<\/b><\/span><\/span><\/span> desses tipos de radia\u00e7\u00f5es devem ser <\/b><\/span><\/span><\/span>constitu\u00eddas de<\/b><\/span><\/span><\/span> _____________ para fins de <\/b><\/span><\/span><\/span>radioprote\u00e7\u00e3o.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

A \"\" <\/b><\/span><\/span><\/span>diferentes materiais e diferentes espessuras <\/b><\/span><\/span><\/span><\/p>\n

B \"\"<\/b><\/span><\/span><\/span> mesmo material e diferentes espessuras <\/b><\/span><\/span><\/span><\/p>\n

C \"\"<\/b><\/span><\/span><\/span> mesmo material e mesma espessura <\/b><\/span><\/span><\/span><\/p>\n

D \"\"<\/b><\/span><\/span><\/span> diferentes materiais e mesma espessura <\/b><\/span><\/span><\/span><\/p>\n

<\/h2>\n

Confira a resolu\u00e7\u00e3o comentada.<\/span><\/a><\/h2>\n","protected":false},"excerpt":{"rendered":"

Em 1974, os presidentes das funda\u00e7\u00f5es criadas por lei municipal e da funda\u00e7\u00e3o criada pelo Estado constitu\u00edram a ACAFE \u2013 Associa\u00e7\u00e3o Catarinense das Funda\u00e7\u00f5es Educacionais, entidade sem fins lucrativos, com a miss\u00e3o de promover a integra\u00e7\u00e3o dos esfor\u00e7os de consolida\u00e7\u00e3o das institui\u00e7\u00f5es de ensino superior por elas mantidas, de executar atividades de suporte t\u00e9cnico-operacional e de represent\u00e1-las junto aos \u00f3rg\u00e3os<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-750","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=750"}],"version-history":[{"count":2,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/750\/revisions"}],"predecessor-version":[{"id":754,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/750\/revisions\/754"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}