Ocean pressure varies with depth and position (latitude) on earth. The pressure acting in water at 3 ft can be calculated as The density of water at 32 oF is 1.940 slugs/ft 3. = 9810 Pa Example - Pressure acting in water at depth 3 ft The pressure acting in water at 1 m can be calculated as The density of water at 4 oC is 1000 kg/m 3. Hydrostatic pressure in a water column - or depth ( density of water 1000 kg/m 3): Height of Water ColumnĮxample - Pressure acting in water at depth 1 m H = height of fluid column - or depth in the fluid where pressure is measured (m, ft) Ρ = density of liquid (kg/m 3, slugs/ft 3) P = pressure in liquid (N/m 2, Pa, lb f/ft 2, psf) Hydrostatic pressure in a liquid can be calculated as
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