Soal tidak diketahui suhu awal misalkan 0°C.
Δt = 50-0 = 50
Koefisien muai luas
β = 2.α = 36.10⁻⁶ /°C
Pertambahan luas
ΔA = A₀.β.Δt
ΔA = 4πR². 36.10⁻⁶. 50
ΔA = 4π. 1². 18.10⁻⁴
ΔA = 0,0226 m²
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Soal tidak diketahui suhu awal misalkan 0°C.
Δt = 50-0 = 50
Koefisien muai luas
β = 2.α = 36.10⁻⁶ /°C
Pertambahan luas
ΔA = A₀.β.Δt
ΔA = 4πR². 36.10⁻⁶. 50
ΔA = 4π. 1². 18.10⁻⁴
ΔA = 0,0226 m²