Question

An object is completely submerged in a liquid of density 0.65 grams per cubic centimeter at a depth of 3 meters. What is the total pressure on the object? State your answer in atmospheres. (Round your answer to to three significant digits)

Answer 1

The pressure due to the depth in a liquid can be calculated as:
P = ρgh; ρ is the density in kg/m³, g is the acceleration due to gravity in m/s² and h is the depth in the fluid.
ρ = 0.65 g/cm³ = 650 kg/m³
P = 650 x 9.81 x 3
= 19100 Pascals
Pressure in atm = 19100/101325 atm
= 0.188 atm