Question

Copper has a density of 8900 kg/m³. Calculate the mass of 2.8 m³ of copper in kilograms.

Answer 1

$= > density = \frac{m}{v} \\ \\ = > 8900 = \frac{m}{2.8} \\ \\ = > m = 8900 \times 2.8 \\ \\ = > 24920 \: Kg$