Like Problem $5-55$

Statement

A pressurized tank of water has a $20\mathrm{.}0-$cm$-$diameter orifice at the bottom,

where water discharges to the atmosphere. The water level is $3\mathrm{.}5$ m above the

outlet. The tank air pressure above the water level is $200\mathrm{.}0$ kPa $($absolute$)$ while

the atmospheric pressure is $100\mathrm{.}0$ kPa $.$ Neglecting frictional effects, determine

the initial discharge rate of water from the tank.

Answer: $0\mathrm{.}515\frac{m^3}{s}$