Question

Tolong dijawab ya no yg kalian bisa..pliss

*yang no 13 itu 100 derajat celsius

pliss urgent buat besokk

Answer 1

L1 = 50 m
T1 = 20°c
T2 = 100°c
a = 0,000012/°c
L2 = ?
Jawab :
∆L = a . L1 . ∆T
L2 - L1 = a . L1 . ( T2 - T1 )
L2 = L1 + a . L1 . ( T2 - T1 )
L2 = L1 { 1+ a . ( T2 - T1 )}
L2 = 50 {1 + 0,000012 ( 100 - 20 )}
L2 = 50 { 1 + 0,000012 ( 80 )}
L2 = 50 { 1 + 0,00096 }
L2 = 50 + 0,048
L2 = 50,048 meter