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phyx eqns fluids
Question | Answer |
---|---|
Pressure | P = F/A |
Density | p = m/v |
Pascal's Principle | Change in pressure applied to completely enclosed fluid is transmitted to all parts of the fluid |
Absolute Pressure from a Gauge | P = Patm + Pg (Pg = Gauge Pressure) |
Pressure in a manometer | P = Patm + pgh |
Buoyant Force | F = mf g or p V g (if the F is greater than gravity, the object will float) |
Equation of Continuity | p1A1v1 = p2A2v2 If the fluid is incompressible, p doesn't change with pressure so A1v1 = A2v2 |
Bernoullis Principle | P1 + pgh1 + 1/2p v1 ^2 = P2 + pgh2 + 1/2 p v2 ^2 |