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Lo = 100 cm
ΔT = [ T₂ - T₁ ] → [ 50 - 25 ] → 25 °C
α .tembaga = 0,000017 /°C
ditanyakn
Lt = ............ ?
jawab
Lt = Lo ( 1 + { Lo . α . Δt })
Lt = 100 ( 1 + { 100 x 0,000017 x 25 })
Lt = 100 ( 1 + { 0,0425 })
Lt = 100 ( 1,0425 })
Lt = 104,25 cm