Question

lead has density of 11.34 g/cm^3. mass of a rectangles leads block of 25 mm×50mm×100mm size is

Answer 1

Density of lead = 11.34 g/cm^3
Volume of the rectangular or cuboidal lead block
$= \frac{25 \times 50 \times 100}{1000} \: {cm}^{3} = 125 \: {cm}^{3}$
Therefore, the mass of the block = (125 × 11.34) g = 1417.5 g = 1.4175 kg or 1.4 kg (approx.)