Water is delivered from a pressure tank through a 1000-m-long cast iron pipe of diameter 0.5 mat a discharge race of 0.4  /s (see Figure PS.32). If the line has a flush inlet with the tank and goes...

Water is delivered from a pressure tank through a 1000-m-long cast iron pipe of diameter 0.5 mat a discharge race of 0.4
 /s (see Figure PS.32). If the line has a flush inlet with the tank and goes through two 90° bends each of radius 0.5 m, and then exits into the atmosphere through a fully open gate valve, what will be the total head lost in the pipe? What is the pressure in the tank (N/ ) for this situation? Assume the water temperature is 20°C.