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Absolute Pressure of a Fluid
P=P₀+ρgh, where P₀ is pressure at the surface, h is depth of the point measured.
P₁+ρv₁²/2+ρgy₁=P₂+ρv₂²/2+ρgy₂, where P=absolute pressure, ρ=density, and y=height relative to reference height
hand on plane with forefingers pointing B and thumb pointing qv, F will come out of palm
f=f₀(v±Vd)/(v±Vs), Vd is speed of detector, Vs is speed of source. + top - bottom for moving towards, - top + bottom for moving away
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