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an external pressure applied to an enclosed fluid is transmitted uniformly throughout the volume of the liquid.
Fin/Ain = Fout/Aout
Think of it as a method of conservation of energy or a simple machine: it is a simple ratio formula
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Archimedes Principle
An object that is completely or partially submerged in a fluid experiencing an upward buoyant force equal to the weight of the fluid displaced.
The buoyant force is due to the displaced fluid. The block material doesnt matter.
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If this volume displaces water equal to its own.
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Calculating the Buoyant Force
The buoyant force FB is due to the difference of pressure AP between the top and the bottom surfaces of the submerged block
Vf is the volume of fluid displaced
FB = pfgV
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Floating Objects
When an object floats, partially submerged, the buoyant force exactly balances the weight of the object
if Vf is volume of displaced water the relative density of an object x is given by
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