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Lo= 3 m
ΔL= 3,00091- 3= 0,00091 m
Δt= 60-0= 60°C
Dit:
α=..?
Penye:
α= ΔL/(Lo.Δt)
α= 0,00091/(3×60)
α= 0,00091/180
α= 0,00000505555 /°C
Δt = 60 - 0 = 60°C
Lt = 3.0091 m
Ditanya = α..?
Jawab = α = Lt - Lo/Lo . Δt
= 3,00091 - 3/3 . 60
= 0,00091/180
= 0.00000505555/°C