A large5 mature tree can lose up to 5'30 kilograms of Twater a day to evaporation. A tall oak has a height of about 18 meters. How much Twork must the oak do to raise this much water to half the height of the tree [assuming that on average the water evaporates from leaves at half the height of the tree)? If this water is lost in 12 hours of daylight, how much power must the oak provide to lift the water