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What is the hydrostatic equation?(a) ΔP=-ρg∆h(b) ΔP=-ρgh(c) P=-ρgΔh(d) ΔP=ρgΔhI got this question in class test.I'd like to ask this question from Standard Atmospheric Model topic in chapter Atmosphere and Air Data Measurement of Aircraft Performance

Answer»

The correct choice is (a) ΔP=-ρg∆h

To EXPLAIN: The hydrostatic EQUATION is GIVEN by ΔP=-ρg∆h. This equation is derived from equating FORCE acting on a cylindrical flow. The unit of pressure is N/m^2. It can also be represented in atm, bar, PASCAL.



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