Extracted text: 2. The pipe network shown has the following properties: Lı=500m, Dı= 250mm; L2=600m, D2=150mm; L3=670m; L=800m, D=300mm. The flow in line 1 is 0.06m/s and the total head lost from A to D is 9 meters. Assume Ci=120 for all pipes. Pipe 2 Pipe 1 Pipe 4 Pipe 3 a. What is the head lost in pipe 2 in meters? b. What is the flow in pipe 2? c. What is the diameter in pipe 3?