Physics

Problem

A sealed industrial tank containing water is pressurized with compressed air above the water surface. The pressure of the air is

P_{\text{air}} = 3 \times 10^{5}\,\text{Pa}

. A valve is opened at a depth of

h = 2\,\text{m}

below the water surface. The external atmospheric pressure is

P_{\text{atm}} = 1 \times 10^{5}\,\text{Pa}

. Calculate the initial efflux velocity of the water. (Density of water

= 1000\,\text{kg/m}^{3}

g = 10\,\text{m/s}^{2}