Respostas

2013-07-04T16:06:37-03:00
ΔL=Lo*α*ΔT
ΔL=200*(17*10^(-6))*400
ΔL=80000*(17*(-6))
ΔL=8*17*10^-2
ΔL=136*10^(-2)
ΔL=1,36
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L=Lo+ΔL
L=200+1,36
L=201,36cm
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alternativa b)
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