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Lo= 20 m
α= 0,000025 /°C
Δt= 80-20= 60°C
Dit:
ΔL= ..?
Penye:
ΔL= Lo.α.Δt
ΔL= 20×0,000025×60
ΔL= 0,03 m
α = 0,000025 /°C
Δt = 80-20= 60°C
Ditanya = ΔL ..?
Jawab = ΔL= Lo.α.Δt
= 20×0,000025×60
= 0,03 m