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α= 0,000015 /°C
Lo= 10 m
Δt= 40 °C
Dit:
ΔL=..?
Penye:
ΔL= Lo.α.Δt
ΔL= 10×0,000015×40
ΔL= 0,006 m
= 0,00015 × 40
= 0,0060 m
= 0,006