This problem may be solved by hand The Jet D'Eau is a landmark of Geneva, in Switzerland. The well-known water fountain is located on the banks of Lake Geneva and expels water from the lake to a height of h = 140 m (about 460 ft). The nozzle diameter of the fountain is D = 10 cm. Water is pumped from the lake through conduit with a diameter D =0.5 m. The pump has an efficiency n=90%. Atmospheric pressure in Geneva is Patm = 100 kPa. Water density is constant, p = 1000 kg/m°. The fountain operates at steady state and you may neglect friction in the air. However, head loss in the pipe due to friction are given by H; = 10v2/(28), where g is the acceleration of gravity. (b) Schematic diagram of the jet d'eau water supply (a) The Jet d'Eau in Geneva, Switzerland. Taken by Chris James, from wikipedia 1. Calculate the pump power in kW) necessary to drive the water fountain.