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Lo = 50 m
To = 20 C
Tt = 100 C
α = 1,2x10⁻⁵/C
Ditanyakan : Lt ?
Dijawab :
Lt = Lo (1 + α x (Tt-To))
= 50 (1 + 1,2x10⁻⁵ x (100-20))
= 50 (1 + 96x10⁻⁵)
= 50 (1,00096)
= 50,048 m
jawaban A