It is claimed that large trees can evaporate as much as 900kg of water per day. Evaporation takes place from the leaves. To get there the water must be raised from the roots of the tree. Assume the mass evaporated is 1242 kg/day and the average rise of water is 5.58m. What is the average power supplied by the tree, if evaporation occurs only during 12 h of day light?( Hint first how much energy must be supplied)