Respostas

2014-05-14T17:29:50-03:00
ΔL= 40.1,2.10^-5(45- (-5))
ΔL= 40.1,2.10^-5(45+ 5)
ΔL= 40.1,2.10^-5.50
ΔL= 2400.10^-5
ΔL= 2400. 0,00001
ΔL= 0,024

Lf= Li + ΔL
Lf= 40+ 0,024
Lf= 40,024
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