Jawabanmu

2014-06-10T17:27:25+07:00
Volume bola = 4/3 π r³
Volume bola = 4/3 (3,14) (0,05)³
Volume bola = 4,1867 ( 0,000125)
Volume bola = 0,00052

Massa jenis bola = massa bola / volume bola = 0,6 / 0,00052 = 1153,84 kg/m3





2014-06-10T17:29:52+07:00
Dik
m=0,6 kg = 600gram
d=10 cm ⇒ r = 5c=0.05m
Dit: ...?
Jwb :
Vbola =  \frac{4}{3} \pi  r^{3}
=  \frac{4}{3} x 3,14 x 125
=523,3
ρ =  \frac{m}{V} = 600/523,3 = 0,1146 gr/cm³ = 114,6 kg/m³