Mathematics · Fluid Mechanics

Water is flowing through a vertical pipe having diameters of 300 mm at the bottom and 200 mm at the upper end. Calculate the pressure energy per unit weight (pressure head) of the water at the upper end, if the intensity of pressure at the upper end is 25 N/cm2. Consider the acceleration due to gravity g = 10 m/s2 and density of water = 1000 kg/m3.