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Illustration Hydrostatic pressure (gravity pressure)

Buoyant Force (Archimedes' principle)
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A pressure \(\mathit{\Pi}\) acts on a body in a liquid with mass density \(\rho\), which is at height \(h\). The body experiences gravitational acceleration \(g\). The pressure depends on these three quantities:\[ \mathit{\Pi} ~=~ \rho \, g \, h \]