Water flows at 40 L/s from reservoir A to reservoir B through the two pipes in series shown in the figure (lengths and diameters on the figure). Take the Darcy friction factor f = 0.02 for both pipes (h_{f} = fLV^{2}/2gD). Include the entry loss 0.5V_{1}^{2}/2g, the sudden-enlargement loss (V_{1} − V_{2})^{2}/2g and the exit loss V_{2}^{2}/2g. Determine (a) the total friction loss in the two pipes (answer in m), (b) the sum of the minor losses (answer in m) and (c) the difference H between the water levels of A and B required (answer in m).