Pressure and Depth
Pressure is measured in newtons per square meters, N / m2; this is known as a pascal, Pa.
1 pascal = 1 Pa = 1 [ N /
m2 ]
The force exerted is independent of the direction.
Now consider the pressure Ph at some depth h beneath the surface of a liquid:
Look at the forces on a column of the liquid -- that column has a cross section area A and a height of h.
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