Question

O bila din plumb are volumul 0.5 cm 3(cm cub).Ce masa are bila?????

Answer 1

$\rho=11 \ 340 \ kg/m^3 \\ V=0,5 \ cm^3=0,000 \ 000 \ 5 \ m^3 \\ \boxed{m-?} \\ \bold{Rezolvare:} \\ \boxed{\rho= \frac{m}{V} } \\ m=\rho \cdot V \\ m=11 \ 340 \ kg/m^3 \cdot 0,000 \ 000 \ 5 \ m^3 \\ \Rightarrow \boxed{m=0.005 \ 67 \ kg}.$