[填空题]
Water falls onto a w. c.oly*4bifaaterhfdx z8xul3) 594x qon wheel from a height of 2.0 m at a rate of 95kg/s (a) If this water wheel is set up to provide electricity output, what iu94z3xnd x8hof 5lq) xs its maximum power output? W
(b) What is the speed of the water as it hits the wheel? m/s