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pressure se supie w wers 7. Water flows through a horizontal pipe at a rate of 2.3 gal/s. The pipe consists of two sections of diameters 4 in and 22 in with a smooth reducing section. The pressure difference between the two pipe sections is measured by a mercury manometer. Neglecting frictional effects, determine the differential height of mercury between the two pipe sections. (MO33] diameter inclined duct at a rate of 65 Us. The duct diameter is then reduced to