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- Pemuaian
Pemuaian panjang
ℓ₀ = 100 cm
Δℓ = 0,11 cm
Δt = 90 ºC
α = __ ?
Koefisien muai panjang
Δℓ = ℓ₀ α Δt
α = Δℓ / (ℓ₀ Δt)
α = 0,11 / (100 · 90)
α = 1,2×10⁻⁵ C⁻¹ ← jawaban