(Solved): 7. Water flows through a horizontal pipe at a rate of 2.3gal/s. The pipe consists of two sectio ...

7. Water flows through a horizontal pipe at a rate of $2.3\mathrm{gal}/\mathrm{s}$. The pipe consists of two sections of diameters 4 in. and 2.2 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. [MO3.3]