Question by  BlueSlug (47)

What is the pressure at any point when a tank with a flat bottom is filled with water to a height of 4 meters?


Answer by  Qman (7)

Water is an incompressible liquid, so the pressure equals the sum of the reference pressure (since this is the bottom of a flat tank, it is zero Pascals) plus the product of the density of water (1000 kilograms per meter cubed) times acceleration due to gravity (9. 8 meters per second squared) times height (4 meters), which equals 39200 Pascals.


Answer by  andra (8)

The pressure at any point depends on the distance to the surface. At the surface the pressure is 1 bar at sea level. For every 10 meters, the pressure increases with 1 bar. So at a depth of 10 meters the pressure would be 2 bar. At the bottom of 4 meter tank the pressure would be 1.4 bar.


Answer by  scbeach (10)

It depends on the width of the tank. Pressure is often measured in psi or pounds per square inch. The heavier (or the larger the force) acting upon a surface the larger the pressure. If you find the volume of water you can convert to mass and multiply by gravity.


Answer by  apsaras (408)

The pressure is equal to the product of the water density (1000 kilograms per cubic meter), height (4 meters) and gravitational acceleration (9.8 meters per square second) or 39.2 kilopascals.


Answer by  Mac44 (479)

Column pressure is defined as the density times gravity times height, so in this case, the pressure is roughly 39. 2 N/m^2

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