Question

Aflati masa unui corp cu densitatea de 7,8g/cm³ si volumul de 5cm³

Answer 1

$d = 7.8 \frac{g}{ {cm}^{3} }$

$v = 5 \: {cm}^{3}$

$d = \frac{m}{v} = \frac{m}{5} = 7.8 = > m = 39g$

Answer 2

ρ = m/V = > m = ρ×V

m = 7,8g/cm³×5cm³

= 39 grame