Question

To dive far below the surface of the water, a submarine must be able to withstand enormous pressures. At a depth of 351 m, what pressure does water exert on the submarine’s hull? Use g=9.81 m/s2.

Answer 1

Answer:

P=3647934.3 Pa

Explanation:

We use the formula for pressure inside a fluid:

$P=P_0+\rho g h$

Where $P_0$ is the pressure at its surface (the atmospheric pressure in our case), $\rho$ its density (the density of seawater in our case), g the acceleration of gravity (which is given in our case, and known) and h the depth at which we want to know the pressure (which is given in our case). For our case then we have:

$P=101325Pa+(1030kg/m^2)(9.81m/s^2)(351m)=3647934.3Pa$