Find the water pressure in a reservoir at a depth of 30 meters.

Let’s take the density of water equal to 1000 kg / m3.

The hydrostatic pressure of the liquid column is calculated by the formula:

P = d * g * h, where

d is the density of the liquid,

g – acceleration due to gravity, 9.8 m / s2;

h is the height of the liquid column (depth);

P = 1000 * 9.8 * 30 = 294000 Pa = 294 kPa.

Answer: P = 294 kPa.