Um quadrado de lado 2 m e feito de material, cujo coeficiente de dilatação superficial e igual a 1,6.... Pergunta de ideia deGustavo5432

December 2019 1 119 Report

Um quadrado de lado 2 m e feito de material, cujo coeficiente de dilatação superficial e igual a 1,6.10^-4 °C-^1. Determine a variação de área deste quadrado quando aquecido em 80 °C.

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Usarei a fórmula de dilatação superficial :

2m = 200 cm

A = L²

A = 200.200

A = 40 000 cm²

ΔS = So . β . Δt

ΔS = 40 000 . 1,6 . 10^-4 . 80

ΔS = 40 000 . 0,00016. 80

ΔS = 6,4 . 80

ΔS = 512 cm² de variação. ok

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URGENTE ????? Uma enefermeira mediu a temperatura de um paciente com um terremoto quadrado na escala fahrenhit e encotrou 104 graus f a temperatura, desse paciente corresponde o m c a que e A)38 B)40 C)36 D)34 E)32

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Porque sentimos frio ? Porque utilizamos o coberto quando estamos com fio ?

URGENTE URGENTE ???? Complete wilth do or doer and traslate. A) I wilth tv? B)They usualty e at pizza? C)He go to school by Car? D)Peder go to the gym? E)Lisa study English? F)The cat drink milk? G)__you eat fish?

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URGENTE ????? Uma enefermeira mediu a temperatura de um paciente com um terremoto quadrado na escala fahrenhit e encotrou 104 graus f a temperatura, desse paciente corresponde o m c a que e A)38 B)40 C)36 D)34 E)32

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Porque sentimos frio ? Porque utilizamos o coberto quando estamos com fio ?

URGENTE URGENTE ???? Complete wilth do or doer and traslate. A)______ I wilth tv? B)______They usualty e at pizza? C)______He go to school by Car? D)______Peder go to the gym? E)______Lisa study English? F)______The cat drink milk? G)______you eat fish?

Recomendar perguntas

Helpful Links

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