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Lt = Lo + delta L = 2,00255 m
b)) delta T = 2. 17. 10-6. (25-0) = 8,5. 10-4 m
Lt = 1,99915
yang B ga yakin sih. karena suhunya lebih rendah berarti bendanya menyusut (mungkin)
Po = 2m
T₁ = 25°
T₂ = a) 100°c
b) 0°c
α = 17 . 10⁻⁶
JAWAB =
a)
ΔP = Po . α . ΔT
= 2m . (17. 0,000001) . (100° - 25°)c
= 2m . 0,000017kg/°c . 75°c
= 0,000034m kg . 75
= 0,00225m kg
b)
ΔP = Po . α . ΔT
= 2m . 0,000017kg/°c . -25°c
=0,00034m kg . -25
=-0,00085m kg
Maaf klo salah...
Klo menurut saya sih gitu