Three reservoirs A, B, and C are connected respectively with pipes 1, 2, and 3 joining at a common junction P. Reservoir A is at elevation 80 m, reservoir B at elevation 70 m and reservoir C is at elevation 60 m. The properties of each pipe are as follows: Elev 80 5000 m 300 mm f=0.018 Pipe 1: L 5000 m, D = 300 mm Pipe 2: L = 4000 m, D = 250 mm Pipe 3: L 3500 m P pr ha hrzt 4000 m-250 mm f = 0.018 3500 m f=0.018 B Elev 70 he Elev 60 The flow from reservoir A to junction P is 0.045 m/s and f for all pipes is 0.018. 4. Find the elevation of the energy grade line at P in m. [10 points] 5. Determine the flow on pipe 2 in m/s. [10 points] 6. Compute the diameter appropriate for pipe 3 in mm. [10 points]