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Diketahui :
ρ = 10,5 gr/cm3
V = 60 mL = 60 cm3
Ditanyakan : m ?
Dijawab :
m = ρ x V
= 10,5 x 60
= 630 gr
jawabn D
Nomor 19 :
Diketahui :
m = 37 gr
d = 2,8 cm
r = 28/2 = 14 cm
t = 0,3 m
Ditanyakan : massa jenis ?
Dijawab :
V = π r² x t
= 22/7 x 14² x 0,3
= 184,8 cm³
Massa jenis :
ρ = m/V
= 37/184,8
= 0,2 gr/cm³