AP Physics B Rev 3

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This is the third set of equations for the AP Physics B exam. Fluid Mechanics and Thermal Physics

Change in Pressure of a submerged object

P=P₀+ρgh

Force of buoyancy

F=ρVg

Ratio of pressures between two points in incompressible fluids

A₁v₁=A₂v₂

Expansion due to heat

Δl=αl₀ΔT

Heat Transfer

H=(kAΔT)/L

Pressure

P=F/A

Gas Law

PV=nRT=NkT

Average Molecular Kinetic Energy

K=3/2(kT)

Root-mean-square Velocity

v=√((3RT)/(M))

Work done on a system

W=-PΔV

Change in potential energy of a system

ΔU=Q+W

Efficiency of a engine

e=abs(W/Q)

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