Question

1. 10 m3 of mercury weights 136×104 N. calculate its specific weight, mass

density, specific gravity.

Answer 1

Specific weight:

$$\gamma=\rho g=W/V=136\text{ kN/m}^3.$$

Mass density:

$$\rho=\gamma/g=13878\text{ kg/m}^3.$$

Specific gravity (to water):

$$SG=\rho/\rho_w=13.878.$$