tolong di bantu kak
Diketahui:
∆t = 40°C – 10°C = 30°C
Lₒ = 1 m
α = 0,000019/°C = 19 × 10¯⁶/°C
Ditanya:
L = ...?
Jawab:
L = Lₒ × (1 + α × ∆t)
L = 1 × (1 + 19 × 10¯⁶ × 30)
L = 1 × (1 + 19 × 3 × 10¯⁵)
L = 1 × 1,00057
L = 1,00057 m (meter)
Jawaban:
Panjang kuningan setelah dipanaskan = 1,00057 m
Penjelasan:
Lo = 1 m
∆T = 40⁰C - 10⁰C = 30⁰C
@ = 0,000019/⁰C
dit. panjang akhir Lt?
jawab :
Lt = Lo + (Lo x @ x ∆T)
= 1 + (1 x 0,000019 x 30)
= 1 + 0,00057
= 1,00057
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