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Force and Pressure (Pressure and Surfaces (Pressure is the force normal to…
Force and Pressure
Pressure and Surfaces
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The force3 F or area A can be calculated by rearranging the pressure equation p=f/a to give f=pa or a=f/p
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Atmospheric Pressure
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Atmospheric pressure decreases with higher altitude becaseu there is less air above a given altitude than there is at a lower altitude
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The force on a flat object due to a pressure difference = the pressure difference x the are aof the flat surface
Upthrust and Flotation
The upthrust on an object in a fluid is an upward force on the object due to the fluid and is cause by the pressure within the fluid
The pressure at a point in a fluid dpends on the density of the fluid and the depth of the fluid at at point
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