Respostas

2014-03-07T13:10:26-03:00
M = d x v = 7,8 x 650 = 5,070 g/cm
2014-03-07T13:15:11-03:00
D = 7,8g/cm³
v = 650 cm³
m = ?
 
m = d . v
m = 7,8 . 650
m = 5070