Hello, 2

I need the solution for the question below in the picture and I need the solution step by step.

Also, I need the solution Written by keyboard not by hand because I had difficulty understanding handwriting, please.

Task 2: The turbine shown in figure 2 generate 400KW pf power. Find the flow rate if: a) No head loss is assumed. b) If head loss is considered with f=0.02 Note: please consider all solutions for this problem and discuss your results