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r = 1,5 cm
ρ = 0,75 g/cm³
dit : m ?
dijawab :
V = rusuk³
= 1,5³
= 3,375 cm³
Jadi massa :
m = ρ x V
= 0,75 X 3,375
= 2,53125 gram
= 2,5 gram
massa jenis = massa/v
0,75 = massa/3,375 cm³
massa = 0,75 x 3,375
= 2,53125 g