Discuss the below in detail:
Q: An exhaust fan in a building should be able to move 2.5 kg/s air at 98 kPa, 20oC through a 0.4 m diameter vent hole. How high a velocity must it generate and how much power is required to do that? You should solve the problem in a step by step.You must include all the units which are needed to solve the given problem.