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L₀ = panjang awal
α = koefisien muai panjang
Δt = perubahan suhu
Lt = L₀ ( 1 + α . Δt )
= 20 cm ( 1 + 10⁻⁴ . 50 )
= 20 cm . 1,005⁰c
= 20,1
semoga membantu,, maaf klo salah ><
αl₀ΔT = ΔL --->ΔL =αl₀ΔΤ
α= ⁰C
l₀ = 20 cm
ΔΤ = 80 - 30 = 50 ⁰C
Δl = αl₀ΔΤ = /⁰C × 20 cm × 50 ⁰C
Δl =10^-4 × 1000cm =10^-4 ×10^3 = 10^-4+3
Δl = = 0,1 cm
#jadikan yg terbaik