Respostas

2014-03-16T19:26:25-03:00
Resposta

ΔT = 20 - 0
ΔT = 20ºC

Lo = 10m

α = 12.10⁻⁶

Forlula

L = Lo.(1 + α. ΔT)

L = 10.(1 + 12.10⁻⁶. 20)

L = 10.(1 + 240.10⁻⁶)

L = 10 + 240.10⁻⁶

L = 10 + 0,00024

L = 10,00024m
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