Jawabanmu

2014-04-16T00:24:41+07:00
ΔL = Lo.α.ΔT
ΔT = ΔL/Lo.α = 0,2/2,5.10^-5.2 = 4000 C
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2014-04-16T03:04:53+07:00
ΔL = Lo.α.ΔT
ΔT = ΔL / Lo.α = 0,2 / 2,5.10^ -5. 2 =  4000 C