Question

A stone has a density of 0.0045 kg/cm^3 and a volume of 2.8 cm^3, what is the weight in pounds.

Answer 1

Density (p) = 0.0045 kg/cm^3

Volume (V)= 2.8 cm^3

mass= m

m = p x V

Replacing:

m = 0.0045 kg/cm^3 x 2.8 cm^3

m = 0.0126 kg

Since

1kg = 2.205 pounds

0.0126 x 2.205 = 0.028 pounds