If you have a rectangular fluid element verticle z-axis and a horizontal x-axis, pressure is constant along the x=axis, but p=f(z) along the z-axis.(adsbygoogle = window.adsbygoogle || []).push({});

If [tex]\frac{dP}{dz}=-density.g[/tex]

is the integral of [tex]\frac{dP}{dz}[/tex] equal to p(z) - p(z1) = -density.g(z-z1)?

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# Pressure in the z-axis

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