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Lt = panjang benda suhu t °C
L₀ = panjang benda suhu 0°C
Δt = kenaikan suhu (°C)
α = koefisien muai panjang (/°C)
Dik : L₀ = 4 m
α = 0,000011/°C
Δt = 50°C - 0°C = 50°C
Dit : Lt?
Jb :
Lt = L₀ (1 + α . Δt)
= 4 m (1 + 0,000011/°C . 50°C)
= 4 m (1 + 0,00055)
= 4 m . 1,00055
= 4,0022 m
= 4 m (1 + 0,00055)
= 4 m . 1,00055
= 4,0022 m