A 90 elbow in a horizontal pipe is used to direct Water water flow upward at a rate of 40 kgs. The diameter of the the b entire elbow is 10 cm The elbow discharges water into the inlet atmosphere, and thus the pressure at the exit is the local throu atmospheric pressure. The elevation difference between the sectir centers of the exit and the inter of the elbow is 30 cm. The and weight of the elbow and the