{"id":4483,"date":"2019-05-24T02:46:20","date_gmt":"2019-05-24T02:46:20","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4483"},"modified":"2024-07-11T12:12:38","modified_gmt":"2024-07-11T12:12:38","slug":"instituto-federal-de-educacao-ciencia-e-tecnologia-de-roraima-rr-019","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2019\/instituto-federal-de-educacao-ciencia-e-tecnologia-de-roraima-rr-019\/","title":{"rendered":"Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia de Roraima \u2013 RR \u2013 019"},"content":{"rendered":"

<\/h3>\n

Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a>\u00a0\u00e9 uma institui\u00e7\u00e3o de ensino superior e t\u00e9cnico brasileira, sediada no\u00a0estado<\/a>\u00a0de\u00a0Roraima<\/a>. O instituto originalmente foi criado atrav\u00e9s de preposi\u00e7\u00e3o do ex deputado federal, Mozarildo Cavalcanti e mediante transforma\u00e7\u00e3o do\u00a0Centro Federal de Educa\u00e7\u00e3o Tecnol\u00f3gica de Roraima<\/a>\u00a0(CEFET-RR), que por sua vez era denominado\u00a0<\/b><\/span><\/span><\/span>Escola T\u00e9cnica Federal de Roraima<\/b><\/i><\/span><\/span><\/span>\u00a0(ETFRR). Sua\u00a0reitoria<\/a>\u00a0est\u00e1 instalada em\u00a0Boa Vista<\/a>, a\u00a0capital<\/a>\u00a0estadual.<\/b><\/span><\/span><\/span><\/p>\n

Disp\u00f5e de cinco\u00a0campi<\/a>, a saber:<\/b><\/span><\/span><\/span><\/p>\n

Campus\u00a0Boa Vista<\/a>\u00a0(sede); <\/b><\/span><\/span><\/span><\/p>\n

Campus Novo Para\u00edso, na zona rural de\u00a0Caracara\u00ed<\/a>;<\/b><\/span><\/span><\/span><\/p>\n

Campus\u00a0Amajari<\/a>, na sede do munic\u00edpio.<\/b><\/span><\/span><\/span><\/p>\n

Campus Avan\u00e7ado de\u00a0Bonfim<\/a>, na sede do munic\u00edpio. Em funcionamento provis\u00f3rio na Escola Estadual Argentina Castelo Branco.<\/b><\/span><\/span><\/span><\/p>\n

Campus Boa Vista – Zona Oeste, na sede do munic\u00edpio. Em funcionamento provis\u00f3rio na escola Elza Breves de Carvalho. Pr\u00e9dio pr\u00f3prio em constru\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

01- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Dois m\u00f3veis, A e B,<\/b><\/span><\/span><\/span> <\/b>percorrem<\/b><\/span><\/span><\/span> uma <\/b><\/span><\/span><\/span>mesma trajet\u00f3ria retil\u00ednea, <\/b><\/span><\/span><\/span>de acordo com as <\/b><\/span><\/span><\/span>equa\u00e7\u00f5es hor\u00e1rias:<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

S<\/b><\/span><\/span><\/span>A<\/b><\/span><\/span><\/sub><\/span> = 40 + 20t e S<\/b><\/span><\/span><\/span>B<\/b><\/span><\/span><\/sub><\/span> = 120 – 10t, em unidades do SI. <\/b><\/span><\/span><\/span><\/p>\n

No <\/b><\/span><\/span><\/span>instante t = 0 s, a dist\u00e2ncia entre eles <\/b><\/span><\/span><\/span>era: <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>40 m <\/b><\/span><\/span><\/span>(B) <\/b><\/span><\/span><\/span>70 m <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>80 m <\/b><\/span><\/span><\/span>(D) <\/b><\/span><\/span><\/span>50 m <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>10 m<\/b><\/span><\/span><\/span><\/p>\n

02- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Um <\/b><\/span><\/span><\/span>fio met\u00e1lico vertical e extenso \u00e9 percorrido por uma corrente de intensidade 3 A. Calcule<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>intensidade do vetor indu\u00e7\u00e3o magn\u00e9tica em um ponto P, que dista 50 cm do fio<\/b><\/span><\/span><\/span>, como mostra a <\/b><\/span><\/span><\/span>figura abaixo. <\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Adote \u00b5<\/b><\/span><\/span><\/span>0<\/b><\/span><\/span><\/sub><\/span> = 4\u03c0.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> T.m\/A. <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>2,4.10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> T <\/b><\/span><\/span><\/span>(B) <\/b><\/span><\/span><\/span>1,8 . 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> T <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>4,6 . 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> T <\/b><\/span><\/span><\/span>(D) <\/b><\/span><\/span><\/span>3,4 . 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> T <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>1,2 . 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> T <\/b><\/span><\/span><\/span><\/p>\n

03- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Uma <\/b><\/span><\/span><\/span>m\u00e1quina t\u00e9rmica que opera segundo o Ciclo de Carnot tem temperatura da sua fonte quente <\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

827 \u00baC e temperatura da fonte fria -53\u00baC.<\/b><\/span><\/span><\/span> Calcule o <\/b><\/span><\/span><\/span>rendimento da m\u00e1quina.<\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>80% <\/b><\/span><\/span><\/span>B) <\/b><\/span><\/span><\/span>60% <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>40% <\/b><\/span><\/span><\/span>(D)<\/b><\/span><\/span><\/span>30% <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>90%<\/b><\/span><\/span><\/span><\/p>\n

04- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Um <\/b><\/span><\/span><\/span>raio luminoso passa do meio 1 para o meio 2, como indica a figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Sendo o \u00edndice de refra\u00e7\u00e3o absoluto do meio 2 igual a 1,8, calcule o \u00edndice de refra\u00e7\u00e3o absoluto do meio 1. Dados: sen 53\u00ba <\/b><\/span><\/span><\/span>= 0,8 e <\/b><\/span><\/span><\/span>sen 30\u00ba <\/b><\/span><\/span><\/span>= 0,5.<\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>2,1 <\/b><\/span><\/span><\/span>(B) <\/b><\/span><\/span><\/span>1,1 <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>2,4 <\/b><\/span><\/span><\/span>D)<\/b><\/span><\/span><\/span>1,7 <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>2,3<\/b><\/span><\/span><\/span><\/p>\n

05- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Dentre as proposi\u00e7\u00f5es que se seguem, assinale a CORRETA: <\/b><\/span><\/span><\/span><\/p>\n

I \u2013<\/b><\/span><\/span><\/span> <\/b>Uma <\/b><\/span><\/span><\/span>grandeza \u00e9 escalar quando para a sua determina\u00e7\u00e3o <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>suficiente dar sua unidade e dire\u00e7\u00e3o num determinado instante. <\/b><\/span><\/span><\/span><\/p>\n

II \u2013<\/b><\/span><\/span><\/span> <\/b>S\u00e3o <\/b><\/span><\/span><\/span>exemplos de grandezas vetoriais: velocidade, massa e for\u00e7a. <\/b><\/span><\/span><\/span><\/p>\n

III \u2013<\/b><\/span><\/span><\/span> <\/b>Uma <\/b><\/span><\/span><\/span>grandeza \u00e9 vetorial <\/b><\/span><\/span><\/span>quando <\/b><\/span><\/span><\/span>para sua determina\u00e7\u00e3o \u00e9 necess\u00e1rio e suficiente conhecer sua intensidade, dire\u00e7\u00e3o e sentido. <\/b><\/span><\/span><\/span><\/p>\n

IV<\/b><\/span><\/span><\/span> <\/b>\u2013 <\/b><\/span><\/span><\/span>S\u00e3o exemplos de grandezas escalares: massa, volume e temperatura. <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>Todos os enunciados I, II, III e IV est\u00e3o corretos. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>Apenas os enunciados III e IV est\u00e3o corretos. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>Apenas os enunciados IV e I est\u00e3o corretos. <\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>Apenas o enunciado III esta correto. <\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>Apenas os enunciados I e II est\u00e3o corretos<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

06- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

A <\/b><\/span><\/span><\/span>resultante das for\u00e7as que atuam em uma part\u00edcula de massa 37,5 kg <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>fun\u00e7\u00e3o de seu deslocamento,<\/b><\/span><\/span><\/span> \u00e9 dado pelo <\/b><\/span><\/span><\/span>gr\u00e1fico abaixo.<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Se <\/b><\/span><\/span><\/span>o corpo partiu do repouso quando estava na origem, determine a velocidade a 20 metros dessa origem.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

(A) <\/b><\/span><\/span><\/span>6 m\/<\/b><\/span><\/span><\/span>s (B) <\/b><\/span><\/span><\/span>12 m\/s <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>9 m\/s <\/b><\/span><\/span><\/span>(D) <\/b><\/span><\/span><\/span>8 m\/s <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>10 m\/s<\/b><\/span><\/span><\/span><\/p>\n

07- (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Sabendo que a carga el\u00e9trica de um el\u00e9tron \u00e9 igual a 1,6.10<\/b><\/span><\/span><\/span>-19<\/b><\/span><\/span><\/sup><\/span> C, determine a carga<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

el\u00e9trica de um corpo que possui 4.10<\/b><\/span><\/span><\/span>20<\/b><\/span><\/span><\/sup><\/span> el\u00e9trons e 8.10<\/b><\/span><\/span><\/span>20<\/b><\/span><\/span><\/sup><\/span> pr\u00f3tons. <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>48 C <\/b><\/span><\/span><\/span>(B) <\/b><\/span><\/span><\/span>82 C <\/b><\/span><\/span><\/span>(C) <\/b><\/span><\/span><\/span>64 C <\/b><\/span><\/span><\/span>(D) <\/b><\/span><\/span><\/span>46 C <\/b><\/span><\/span><\/span>(E) <\/b><\/span><\/span><\/span>25 C<\/b><\/span><\/span><\/span><\/p>\n

Resolu\u00e7\u00e3o comentada das quest\u00f5es de F\u00edsica do (Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia<\/a>\u00a0de\u00a0Roraima<\/a> \u2013 RR \u2013 019)<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

01-<\/span><\/span><\/span><\/p>\n

<\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

02-<\/span><\/span><\/span><\/p>\n

<\/p>\n

<\/p>\n

R- E<\/b><\/span><\/span><\/span><\/p>\n

03-<\/span><\/span><\/span><\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

R- A<\/b><\/span><\/span><\/span><\/p>\n

04-<\/span><\/span><\/span><\/p>\n

Lei de Snell – Descartes<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

<\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

05-<\/span><\/span><\/span><\/p>\n

I \u2013 Falsa<\/b><\/span><\/span><\/span> <\/b>– Uma <\/b><\/span><\/span><\/span>grandeza \u00e9 escalar quando para a sua determina\u00e7\u00e3o \u00e9 suficiente dar seu m\u00f3dulo e sua unidade.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

II \u2013 Falsa<\/b><\/span><\/span><\/span> \u2013 <\/b><\/span><\/span><\/span>massa n\u00e3o \u00e9 uma grandeza vetorial<\/b><\/span><\/span><\/span>, <\/b><\/span><\/span><\/span>n\u00e3o tem dire\u00e7\u00e3o nem sentido.<\/b><\/span><\/span><\/span><\/p>\n

III \u2013 Correta<\/b><\/span><\/span><\/span> <\/b>– Uma <\/b><\/span><\/span><\/span>grandeza \u00e9 vetorial <\/b><\/span><\/span><\/span>quando para <\/b><\/span><\/span><\/span>sua determina\u00e7\u00e3o \u00e9 necess\u00e1rio e suficiente conhecer sua intensidade, dire\u00e7\u00e3o e sentido. <\/b><\/span><\/span><\/span><\/p>\n

IV \u2013 Correta <\/b><\/span><\/span><\/span>– <\/b><\/span><\/span><\/span>s\u00e3o exemplos de grandezas escalares: massa, volume e tempera<\/b><\/span><\/span><\/span>tura \u2013 ficam <\/b><\/span><\/span><\/span>perfeitamente caracterizadas apenas pelo m\u00f3dulo e unidade <\/b><\/span><\/span><\/span>n\u00e3o sendo preciso <\/b><\/span><\/span><\/span>dire\u00e7\u00e3o nem sentido.<\/b><\/span><\/span><\/span><\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

06-<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

<\/p>\n

Teorema da energia cin\u00e9tica<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n

\"Instituto<\/p>\n

<\/p>\n

R – D<\/b><\/span><\/span><\/span><\/p>\n

07-<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

R- C <\/b><\/span><\/span><\/span><\/p>\n

<\/a><\/p>\n

Clique aqui para ver sobre o tema!<\/a><\/p>\n

Confira as v\u00eddeo aulas!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia\u00a0de\u00a0Roraima\u00a0\u00e9 uma institui\u00e7\u00e3o de ensino superior e t\u00e9cnico brasileira, sediada no\u00a0estado\u00a0de\u00a0Roraima. O instituto originalmente foi criado atrav\u00e9s de preposi\u00e7\u00e3o do ex deputado federal, Mozarildo Cavalcanti e mediante transforma\u00e7\u00e3o do\u00a0Centro Federal de Educa\u00e7\u00e3o Tecnol\u00f3gica de Roraima\u00a0(CEFET-RR), que por sua vez era denominado\u00a0Escola T\u00e9cnica Federal de Roraima\u00a0(ETFRR). Sua\u00a0reitoria\u00a0est\u00e1 instalada em\u00a0Boa Vista, a\u00a0capital\u00a0estadual. Disp\u00f5e de cinco\u00a0campi, a<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4337,"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-4483","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4483","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=4483"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4483\/revisions"}],"predecessor-version":[{"id":10308,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4483\/revisions\/10308"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4337"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=4483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}