A Pelton wheel has a mean bucket speed of 10 m/s with a jet of water flowing at 700 L/s under a head of 30 m. The buckets deflect the jet through an angle of 160°. Take C_{v} = 0.98 and neglect friction on the buckets. Calculate (a) the power given by the water to the runner (kW) and (b) the hydraulic efficiency (%).