Water at 80˚C enters the radiator at A with an average velocity of 1.5 m/s and a pressure of 400 kPa. If each 180° bend has a minor loss coefficient of KL = 1.03, determine the pressure at the exit B. The copper pipe has a diameter of 8 mm. Take ε= 0.0015 mm. The radiator is in the vertical plane as shown in the figure