Question

Find the hydrostatic and absolute pressure exerted on an object that is 4.45m below the surface of gasoline. The density of gasoline is 680 kg/m3

Answer 1

hydrostatic pressure is determined as follows

$P.hydrostatic = \rho * g * h = 680 * 9.81 * 4.45 = 29,685 Pa$

Absolute pressure is the total of atmospheric and hydrostatic pressure

$P.absolute = P.hydrstatic + P.atmosphere = 29,685 + 100,000 = 129,685 Pa$