Jawabanmu

2014-08-18T13:27:23+07:00
1. 8 m/s = 8 x 60 s = 480 m/jam = 480 : 1000m = 0,48 km/jam

maaf aku cuman bisa njawab 1 soal
aneh kau . gemar membantu tapi on . masa s › Jam = 60 haha lolz
2014-08-18T13:48:26+07:00
1. 8 m/s......km/jam
1 jam 3600 s
3.6 x 8 = 28,8 Km/jam

2. 2,3 g/cm kubik...........kg/m kubik
1 m³ = 1.000.000 cm³
1 kg = 1.000 g
2,3/1.000.000.000 = 0.000.000.002.3 kg/m³


3. 7200 kg/m kubik....... g/cm kubik
1 m³ = 1.000.000 cm³
1 kg = 1.000 g
7200 * 1.000.000.000
= 7.200.000.000.000 g/cm³