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Minhas Disciplinas / Meus cursos / 418338 / Unidade 3 - Integral De�nida / UN 3 - Avaliação Objetiva
Cálculo II
Iniciado em Saturday, 27 Apr 2024, 10:37
Estado Finalizada
Concluída em Saturday, 27 Apr 2024, 10:38
Tempo
empregado
1 minuto 16 segundos
Avaliar 1,70 de um máximo de 1,70(100%)
Questão 1
Correto
Atingiu 0,34 de 0,34
Durante um intervalo de 0 a 5 segundos, uma partícula move-se ao longo de uma reta e sua velocidade, em m/s,
é dada pela função v(t)=2t+1. Determine, aproximadamente, o deslocamento dessa partícula durante este
intervalo de tempo. 
Escolha uma opção:
a. 30 m 
b. 40 m
c. 20 m
d. 35 m
e. 26 m
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Questão 2
Correto
Atingiu 0,34 de 0,34
Uma determinada peça, utilizada na montagem de um máquina de lavar roupas, tem formato que pode ser
obtido pela rotação das curvas
em torno do eixo x, entre x = 0 e x = 2. Qual o volume dessa peça, em unidade de volume (u.v.)?
Escolha uma opção:
a. 2,23 π. 
b. 2,32 π.
c. 4,02 π u. v.
d. 6,9 π u. v.
e. 6,4 π u. v.
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Questão 3
Correto
Atingiu 0,34 de 0,34
Um pequeno jardim será construído aproveitando-se ao máximo o espaço vago entre duas construções em um
lote. Este jardim está representado na �gura abaixo pela interseção entre as curvas  f(x)=x  e g(x)= 2-x  . Qual será
a área (em m ) destinada para este �m?
Escolha uma opção:
a. 10/3 m
2 2
2
2
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Questão 4
Correto
Atingiu 0,34 de 0,34
Questão 5
Correto
Atingiu 0,34 de 0,34
b. 16/3 m
c. 5/3 m
d. 14/3 m
e. 8/3 m 
2
2
2
2
Técnicos responsáveis por acompanhar a temperatura em determinado ambiente modelaram a função
T(t)=0,02t +4t-3 °C, a �m de poderem fazer esse controle de forma mais e�ciente durante t horas do dia.
Determine a temperatura média desse ambiente entre 6 horas e meio-dia. 
Escolha uma opção:
a. 40 °C
b. 208 °C
c. 22 °C
d. 34,68 °C 
e. 36 °C
2
Sabendo que a força necessária para esticar uma mola x metros é dada por f(x) = 6.x  Newtons, determine qual o
trabalho é necessário para esticar a mola 2 metros além do seu comprimento natural.
Escolha uma opção:
a. 24 Joules
b. 6 Joules
c. 4 Joules
d. 12 Joules 
e. 10 Joules
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