1. The problem statement, all variables and given/known data Been at this question for some time an needing a double check to see if things are right. A fan that consumes 20W of eletric power when operating is claimed to discharge air from a ventilaed room at a rate of 0.25 kg/s at a discharge velocity of 8 m/s. Determine if this claim is reasonable? 2. Relevant equations KE of wind = 0.5 mv^2 20W = 20 j/s 3. The attempt at a solution When i worked it out i calculated it would be 8J. This seems to be posible for a 20W fan to do this work. Is this correct??