Uma barra metálica tem o módulo de Young de begin mathsize 14px style 6 comma 0 times 10 to the power of 10 space N divided by m squared end style . A tensão máxima suportada pela barra é de begin mathsize 14px style 2 comma 5 times 10 to the power of 8 space N divided by m squared end style, determine a máxima deformação da barra.
begin mathsize 14px style d e f space equals space 4 comma space 6 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 4 comma space 4 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 3 comma space 7 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 4 comma space 2 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 3 comma space 9 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 4 comma space 6 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 4 comma space 4 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 3 comma space 7 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 4 comma space 2 space times space 10 to the power of negative 3 end exponent end style
begin mathsize 14px style d e f space equals space 3 comma space 9 space times space 10 to the power of negative 3 end exponent end style
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Resposta:
def = 3 , 9 · 10^−3
Explicação:
Conferido no AVA