In figure 5, determine the pressure head difference in feet of water between m and n, when z is: (a) 3.77 in.; (b) 10.77; (c) 15.77 in Determine the value of z if the pressure at n is 1.477 lb per sq. in. greater than at m. If the pressure at m is 20.77 lb per sq. in, what is the corresponding pressure at n when z = 8.77 in.

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Pressure and Stress