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Lo = 50 cm
To = 0 C
T = 100 C
α = 12x10⁻⁶ /C
dit : L ?
dijawab :
L = Lo (1 + α x ΔT)
= 50 (1 + 12x10⁻⁶ x (100-0))
= 50 (1 + 12x10⁻⁶ x 100)
= 50 (1 + 12x10⁻⁴)
= 50,06 cm