Respostas

2014-03-29T17:38:54-03:00

Lo = 75m

ΔT = 17ºC

ΔL = lo.α.ΔT
ΔL = 75.17.10⁻⁶.17
ΔL = 21675.10⁻⁶
ΔL = 0,0216m