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Jawaban : B
nomer 9. Jawaban : A
nomer 10
diketahui : P = 12 cm
L = 5 cm
t = 10 cm
m = 0,9 kg = 900 gram
ditanya : ρ = .... ?
dijawab :
ρ = m / V
= m / (P . L . t)
= 900 / (12 . 5 . 10)
= 900 / 600
ρ = 1,5 gram/cm³
Jawaban : C