PHYSICS 3B Chapter Notes - Chapter 13: Pressure Measurement, The Fluid, Mass Flow Rate
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Force due to pressure in a fluid at rest the pressure is the same m all directions is always t. Formula for how pressure rabies y depth ! Pressure decreases with an increase in height a given depth. If pressure at height y , in the fluid is pi. , and at yz it is pa , then ear . can be integrated. Hamid s in which variation in density can be ignored : pz- p. Pg (yay , ) open container exposed to atmospheric pressure. Where h - p - (pressure @ depth h ) , P for water 60 it is incompressible. Com be applied to gases for most ordinary gases , pressure is the same. Through art and po l -- pr) is atmospheric pressure. : i atm = i - 013 105 nim 2 = 101 . Gauge pressure : pressure relative to atmospheric pressure (no )
