Before the advent of the steam-powered engine, most mechanical processes were driven by extractingpower from a nearby river using a water wheel. A miller wants to construct a water wheel to grindgrain into hour. He needs a total power output of 0.5 kW to meet the demand of his mill. Ifa nearby waterfall will flow at a rate of 400 liters/minute onto the top of the wheel, what is therequired diameter of the water wheel to achieve the desired power output?