Consider a 12ft x14ft x8 ft (height)room filled with motionless air. Assumingthe air pressure at the room ceiling of 14.7 psi and constant air densityof0.075 lbm/ft3, find(A)Pressure at the room floor(in psi); (B)Total force (in lbf) exerted by the air on the ceiling;(C)Total force (in lbf) exerted by the air on the floor;(D)Total weight (in lbf) of the air in the room. Compare your answers (B), (C) and (D)