There are two buckets of water, both lying at a height of 10m above the ground: bucket a: at 90 deg. c, contains 1kg of water bucket b: at 50 deg. c, contains 2kg of water 00kj of energy is to be extracted from one of the buckets. the best quality of energy can be extracted from o bucket a o bucket b energy extracted from both the buckets will have the same quality

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?