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To = 10 C
L =2 m
α = 2,5x10⁻⁵/C
ΔL = 0,2% = 0,2% x 2= 0,004 m
Ditanyakan : Tt ?
Dijawab :
Tt-To = ΔL / (Lox α)
Tt-10 = 0,004 / (2x2,5x10⁻⁵)
Tt-10 = 0,004 / 5x10⁻⁵
Tt-10 = 80
Tt = 80 + 10
Tt = 90 C