{"id":817,"date":"2015-05-14T15:20:51","date_gmt":"2015-05-14T15:20:51","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=817"},"modified":"2024-09-03T13:20:43","modified_gmt":"2024-09-03T13:20:43","slug":"exercicios-resolvidos-ifpe-2015","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2015\/exercicios-resolvidos-ifpe-2015\/","title":{"rendered":"Exerc\u00edcios Resolvidos IFPE 2015"},"content":{"rendered":"

\"\"<\/p>\n

O\u00a0Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia de Pernambuco\u00a0\u00e9 uma institui\u00e7\u00e3o de\u00a0ensino Federal superior\u00a0brasileira, Possui 9 campi descentralizados\u00a0 e 14.000 alunos. No vestibular 2010\/2011: teve 23 mil alunos (agora o IFPE se configura como um dos processos seletivos mais concorridos do Norte-Nordeste, al\u00e9m de ser o IF mais concorrido do Pa\u00eds)<\/b><\/span><\/span><\/span><\/p>\n

Atualmente o curso de Ensino M\u00e9dio voltou a ser integrado ao N\u00edvel T\u00e9cnico, sendo apontado pelas avalia\u00e7\u00f5es do Enem como um dos tr\u00eas melhores cursos de ensino m\u00e9dio de Pernambuco. As turmas de Ensino M\u00e9dio do\u00a0IFPE\u00a0s\u00e3o destaques no cen\u00e1rio nacional, obtendo \u00edndices incr\u00edveis de aprova\u00e7\u00e3o nos principais vestibulares do pa\u00eds, alcan\u00e7ando a excelente marca de 99% de aprova\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

01-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Andando pela rua onde mora, Bira notou que <\/b><\/span><\/span>havia um pr\u00e9dio em obras <\/b><\/span><\/span><\/span>onde foi constru\u00edda uma <\/b><\/span><\/span>rampa <\/b><\/span><\/span><\/span>para retirada de entulhos do <\/b><\/span><\/span>segundo andar do edif\u00edcio<\/b><\/span><\/span><\/span>. A rampa forma um <\/b><\/span><\/span>\u00e2ngulo<\/b><\/span><\/span><\/span> de <\/b><\/span><\/span>inclina\u00e7\u00e3o de 30\u00b0 com o ch\u00e3o,<\/b><\/span><\/span><\/span> conforme a figura abaixo.<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabendo que o <\/b><\/span><\/span>topo da rampa est\u00e1 a uma altura de 6m do ch\u00e3o<\/b><\/span><\/span><\/span>, <\/b><\/span><\/span>qual o comprimento da rampa<\/b><\/span><\/span><\/span>, em<\/b><\/span><\/span><\/p>\n

metros?<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

02-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

No primeiro semestre de cada ano, o IFPE faz uma campanha de <\/b><\/span><\/span>vacina\u00e7\u00e3o<\/b><\/span><\/span><\/span> para os professores, alunos e servidores administrativos, com o objetivo de <\/b><\/span><\/span>imunizar contra v\u00e1rias doen\u00e7as.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

A aplica\u00e7\u00e3o da vacina \u00e9 simples. <\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span>uma seringa \u00e9 exercida uma for\u00e7a de 2,0N perpendicular ao bra\u00e7o<\/b><\/span><\/span><\/span>, atingindo uma <\/b><\/span><\/span>\u00e1rea de 0,08<\/b><\/span><\/span><\/span> <\/b>mm<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span> A <\/b><\/span><\/span>press\u00e3o <\/b><\/span><\/span><\/span>exercida <\/b><\/span><\/span>pela for\u00e7a, na \u00e1rea de contato entre a ponta da agulha e o bra\u00e7o<\/b><\/span><\/span><\/span> vale, em <\/b><\/span><\/span>10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> <\/b>Pa:<\/b><\/span><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> 16 <\/b><\/span><\/span>b)<\/b><\/span><\/span><\/span> 25 <\/b><\/span><\/span>c)<\/b><\/span><\/span><\/span> 36 <\/b><\/span><\/span>d)<\/b><\/span><\/span><\/span> 40 <\/b><\/span><\/span>e)<\/b><\/span><\/span><\/span> 56<\/b><\/span><\/span><\/p>\n

03-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Num <\/b><\/span><\/span>caldeir\u00e3o de ferro com 10kg de massa<\/b><\/span><\/span><\/span>, inicialmente a <\/b><\/span><\/span>10\u00baC,<\/b><\/span><\/span><\/span> s\u00e3o colocados <\/b><\/span><\/span>20kg de \u00e1gua<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

tamb\u00e9m a <\/b><\/span><\/span>10\u00baC<\/b><\/span><\/span><\/span>. O <\/b><\/span><\/span>calor espec\u00edfico do ferro \u00e9 460 J\/kg\u00baC e o da \u00e1gua 4.200 J\/kg<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>C. <\/b><\/span><\/span><\/span>Uma <\/b><\/span><\/span>fonte t\u00e9rmica<\/b><\/span><\/span><\/span> dever\u00e1 <\/b><\/span><\/span>transmitir calor<\/b><\/span><\/span><\/span> a esse caldeir\u00e3o para <\/b><\/span><\/span>aquec\u00ea-lo, juntamente com a \u00e1gua, at\u00e9 100<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span> C.<\/b><\/span><\/span><\/span> Considerando que <\/b><\/span><\/span>todo o calor liberado pela fonte ser\u00e1 absorvido apenas pelo caldeir\u00e3o e pela \u00e1gua,<\/b><\/span><\/span><\/span> qual ser\u00e1 essa <\/b><\/span><\/span>quantidade de calor, em kJ?<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

04-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u00c9 um <\/b><\/span><\/span>fen\u00f4meno relativamente comum em grande cidades<\/b><\/span><\/span><\/span>, especialmente, aquelas localizadas em \u00e1reas <\/b><\/span><\/span>subtropicais ou temperadas.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Assinale a <\/b><\/span><\/span>alternativa que identifica o problema ambiental descrito na imagem<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> Chuva \u00e1cida.<\/b><\/span><\/span><\/p>\n

b)<\/b><\/span><\/span><\/span> Efeito estufa.<\/b><\/span><\/span><\/p>\n

c)<\/b><\/span><\/span><\/span> Ilhas de calor.<\/b><\/span><\/span><\/p>\n

d)<\/b><\/span><\/span><\/span> Destrui\u00e7\u00e3o da camada de oz\u00f4nio.<\/b><\/span><\/span><\/p>\n

e)<\/b><\/span><\/span><\/span> Invers\u00e3o t\u00e9rmica.<\/b><\/span><\/span><\/p>\n

05-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Dois <\/b><\/span><\/span>baldes A e B<\/b><\/span><\/span><\/span>, de <\/b><\/span><\/span>massas desprez\u00edveis<\/b><\/span><\/span><\/span>, est\u00e3o suspensos por roldanas e fios ideais, como est\u00e1 representado na <\/b><\/span><\/span>figura <\/b><\/span><\/span><\/span>abaixo.<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

Eles cont\u00eam <\/b><\/span><\/span>\u00e1gua <\/b><\/span><\/span><\/span>e, quando o <\/b><\/span><\/span>sistema<\/b><\/span><\/span><\/span> est\u00e1 em <\/b><\/span><\/span>equil\u00edbrio<\/b><\/span><\/span><\/span>, as <\/b><\/span><\/span>massas de \u00e1gua nos baldes<\/b><\/span><\/span><\/span> podem ser<\/b><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> iguais.<\/b><\/span><\/span><\/p>\n

b)<\/b><\/span><\/span><\/span> desiguais, sendo a massa de \u00e1gua do balde A o dobro da massa de \u00e1gua do balde B.<\/b><\/span><\/span><\/p>\n

c)<\/b><\/span><\/span><\/span> diferentes, sendo a massa de \u00e1gua do balde B o dobro da massa de \u00e1gua do balde A.<\/b><\/span><\/span><\/p>\n

d)<\/b><\/span><\/span><\/span> desiguais, sendo a massa de \u00e1gua do balde A o qu\u00e1druplo da massa de \u00e1gua do balde B.<\/b><\/span><\/span><\/p>\n

e)<\/b><\/span><\/span><\/span> diferentes, sendo a massa de \u00e1gua do balde B o qu\u00e1druplo da massa de \u00e1gua do balde A.<\/b><\/span><\/span><\/p>\n

06-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span>estudante<\/b><\/span><\/span><\/span> do <\/b><\/span><\/span>campus <\/b><\/i><\/span><\/span>Recife do IFPE<\/b><\/span><\/span><\/span> faz uso de uma <\/b><\/span><\/span>cadeira de rodas<\/b><\/span><\/span><\/span>. Ele pretende <\/b><\/span><\/span>descer <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span>rampa <\/b><\/span><\/span><\/span>de acesso ao estacionamento e nota que <\/b><\/span><\/span>ela tem 1,5m de altura e 2,5m de comprimento. <\/b><\/span><\/span><\/span>Ele percebe que est\u00e1 <\/b><\/span><\/span>chovendo<\/b><\/span><\/span><\/span> e, quando est\u00e1 no <\/b><\/span><\/span>topo da rampa<\/b><\/span><\/span><\/span>, <\/b><\/span><\/span>trava<\/b><\/span><\/span><\/span> as <\/b><\/span><\/span>rodas<\/b><\/span><\/span><\/span> da sua cadeira. Ela, ent\u00e3o, <\/b><\/span><\/span>escorrega sobre a rampa at\u00e9 atingir a sua base. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabendo-se que o <\/b><\/span><\/span>coeficiente de atrito din\u00e2mico<\/b><\/span><\/span><\/span> de escorregamento entre as <\/b><\/span><\/span>rodas da cadeira e a<\/b><\/span><\/span><\/span> <\/b>rampa \u00e9 0,5 e a acelera\u00e7\u00e3o da gravidade local \u00e9 10m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>, a <\/b><\/span><\/span>acelera\u00e7\u00e3o<\/b><\/span><\/span><\/span> do conjunto (estudante + cadeira de rodas) <\/b><\/span><\/span>durante a descida \u00e9, em m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>, igual a:<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

07-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span>barco flutua<\/b><\/span><\/span><\/span> nas \u00e1guas do mar, <\/b><\/span><\/span>ancorado<\/b><\/span><\/span><\/span> pr\u00f3ximo a uma praia. As <\/b><\/span><\/span>ondas<\/b><\/span><\/span><\/span> do mar fazem com que ele <\/b><\/span><\/span>execute um movimento de sobe e desce<\/b><\/span><\/span><\/span>, de acordo com a <\/b><\/span><\/span>figura <\/b><\/span><\/span><\/span>abaixo.<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span>intervalo de tempo<\/b><\/span><\/span><\/span> que o barco gasta para ir do ponto <\/b><\/span><\/span>mais alto A<\/b><\/span><\/span><\/span>, ao <\/b><\/span><\/span>mais baixo B<\/b><\/span><\/span><\/span>, do seu<\/b><\/span><\/span><\/p>\n

movimento, \u00e9 de <\/b><\/span><\/span>2 segundos<\/b><\/span><\/span><\/span>. Ent\u00e3o, a <\/b><\/span><\/span>frequ\u00eancia <\/b><\/span><\/span><\/span>do <\/b><\/span><\/span>movimento <\/b><\/span><\/span><\/span>desse barco \u00e9, em <\/b><\/span><\/span>HZ,<\/b><\/span><\/span><\/span> igual a:<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

RL<\/b><\/span><\/span><\/span><\/p>\n

08-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Defeitos na vis\u00e3o humana<\/b><\/span><\/span><\/span> decorrem de <\/b><\/span><\/span>anomalias no olho<\/b><\/span><\/span><\/span>, que podem resultar em dificuldades<\/b><\/span><\/span><\/p>\n

\"\"<\/p>\n

para <\/b><\/span><\/span>enxergar<\/b><\/span><\/span><\/span>. A <\/b><\/span><\/span>corre\u00e7\u00e3o<\/b><\/span><\/span><\/span> desses defeitos \u00e9 poss\u00edvel atrav\u00e9s da utiliza\u00e7\u00e3o de <\/b><\/span><\/span>lentes.<\/b><\/span><\/span><\/span> Dentre as <\/b><\/span><\/span>alternativas<\/b><\/span><\/span><\/span> a seguir, <\/b><\/span><\/span>assinale a \u00fanica que n\u00e3o \u00e9 defeito na vis\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

09-(IFPE-PE-015)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Os <\/b><\/span><\/span>fus\u00edveis f<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>, f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> e f<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span> do circuito<\/b><\/span><\/span><\/span> a seguir suportam, no <\/b><\/span><\/span>m\u00e1ximo, 2A, 1A e 1A, respectivamente<\/b><\/span><\/span><\/span>. Num <\/b><\/span><\/span>certo instante<\/b><\/span><\/span><\/span>, a chave <\/b><\/span><\/span>(Ch) do circuito \u00e9 fechada.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u00c9 <\/b><\/span><\/span>correto <\/b><\/span><\/span><\/span>afirmar que apenas<\/b><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> o fus\u00edvel 1 se rompe.<\/b><\/span><\/span><\/p>\n

b)<\/b><\/span><\/span><\/span> o fus\u00edvel 2 se rompe.<\/b><\/span><\/span><\/p>\n

c)<\/b><\/span><\/span><\/span> o fus\u00edvel 3 se rompe.<\/b><\/span><\/span><\/p>\n

d)<\/b><\/span><\/span><\/span> os fus\u00edveis 1 e 2 v\u00e3o se romper.<\/b><\/span><\/span><\/p>\n

e)<\/b><\/span><\/span><\/span> os fus\u00edveis 2 e 3 v\u00e3o se romper.<\/b><\/span><\/span><\/p>\n

<\/h2>\n

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

O\u00a0Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia de Pernambuco\u00a0\u00e9 uma institui\u00e7\u00e3o de\u00a0ensino Federal superior\u00a0brasileira, Possui 9 campi descentralizados\u00a0 e 14.000 alunos. No vestibular 2010\/2011: teve 23 mil alunos (agora o IFPE se configura como um dos processos seletivos mais concorridos do Norte-Nordeste, al\u00e9m de ser o IF mais concorrido do Pa\u00eds) Atualmente o curso de Ensino M\u00e9dio voltou a ser<\/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-817","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/817","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=817"}],"version-history":[{"count":2,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/817\/revisions"}],"predecessor-version":[{"id":852,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/817\/revisions\/852"}],"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=817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}