Two pipes are connected in series and are used to transfer water from reservoir a to reservoir b. both pipes have an equivalent sand roughness, ks, of 0.06 mm. a steady flow rate of 0.12 m3 /s is maintained in the pipes. the pipe diameters and lengths for pipe 1 and pipe 2 are d1 = 200 mm, l1 = 100 m; and d2 = 300 mm, l2 = 250 m, respectively. assume that the kinematic viscosity of water is 1×10? 6 m 2 /s . the entrance loss coefficient ki is 0.5, the exit loss coefficient ko is 1.0. the equation for minor loss at the expansion joint is {(v1-v2 )/ 2g} , where v1 and v2 are the flow velocities in pipe 1 and pipe 2, respectively, and g is acceleration due to gravity. determine the difference in water surface elevation (h) between the two reservoirs.