Question

What is the pressure exerted by a column of water 80 cm high ?
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Answer 1

`P=7,840\ Pa`

Step-by-step explanation:

Pressure Exerted by a Column of Liquid

The pressure P exerted by a column of liquid of height h and density ρ is given by the hydrostatic pressure equation:

P = ρgh

Where ρ is the density of the liquid, g is the acceleration of gravity g=9.8m/s^2, and h is the height of the column of liquid.

The data provided is as follows:

`\rho=1000\ Kg/m^3`

`g=9.8m/s^2`

`h=80\ cm = 0.8\ m`

The pressure is:

`P = 1000\ Kg/m^3\cdot 9.8\ m/s^2 \cdot 0.8\ m`

`\boxed{P=7,840\ Pa}`