Question

Ce masa are o bucata de nichel cu volumul de 200 cm3? (Pnichel = 8 900 kg/m?)​

Answer 1

Răspuns:

$p = \frac{m}{v} \\ \\ m = p \times v = \\ \\ = \frac{8900 \: kg}{{m}^{3} } \times 200 {cm}^{3} = \\ \\ = \frac{8900 \: kg}{ {m}^{ 3} } \times 0.0002 {m}^{3} = \\ \\ = 1.78 \: kg$

Succes!