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Physics Ch. 4 - Fluids
MCAT
4
Physics
Undergraduate 1
04/17/2016
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Term
equation for pressure
 Definition

P = F/A

P is pressure in pascals (Pa)

F is force in Newtons (N)

A is area in meters squared (m2)

 
Term
equation for absolute pressure exerted on an object submerged in fluid
 Definition

P = P0 + ρgz

P is total or absolute pressure

P0 is ambient pressure (pressure at surface)

ρ is the density of the fluid

g is acceleration due to gravity

z is the depth of the object
Term
What is gauge pressure?
 Definition
The difference between absolute/hydrostatic (total) pressure and atmospheric pressure.
Term
What is gauge pressure?
 Definition
The difference between absolute/hydrostatic (total) pressure and atmospheric pressure.
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