Atmospheric pressure is about 100000 pa. at h ≈ 10 m depth in water does this pressure double
Water pressure is the result of the weight of all the water above pushing down on the water below. As you go deeper into a body of water, there is more water above, and therefore a greater weight pushing down. This is the reason water pressure increases with depth.
The atmospheric pressure at a point is defined as the force acting normally on a unit area around that point, due to the total height of the air column of the atmosphere above it.
Pressure in depth = Atmospheric pressure + (rho) * g * h
where
rho = density of water
g = acceleration due to gravity
h = depth in water
P = Po + rho * g * h
2 * [tex]10^{5}[/tex] = [tex]10^{5}[/tex] + [tex]10^{3}[/tex] * 9.8 * h
h = 10.20 m
h ≈ 10 m
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