Four identical sections of pipe are connected in various ways to pumps that supply water at the

Question:

Four identical sections of pipe are connected in various ways to pumps that supply water at the pressures indicated in the figure (in units of 10 5 Pa). The water exits at the right at atmospheric pressure. Assume viscous flow?
1. If the total volume flow rates in systems A and C are the same and the flow speed in each of the pipes in C is 3.0 m/s, what is the flow speed in system A?
2. If the total volume flow rates in systems A and C are the same and the flow speed in each of the pipes in C is 3.0 m/s, what is the flow speed in system A?
3. If the total volume flow rate in system B is 0.020 m3 /s, what is the total volume flow rate in system C?