4x2-ft gate is hinged at a and is held in position by rod cd. end d rests against a spring whose constant is 828 lb/ft. the spring is undeformed when the gate is vertical. assuming that the force exerted by rod cd on the gate remains horizontal, determine the minimum depth of water d for which the bottom b of the gate will move to the end of the cylindrical portion of the floor

Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain