A hovercraft, shown below, operates by using a fan to fill a skirt of high-pressure air on which the craft hovers. Consider a round hovercraft weighing 4000lbm with a diameter of 8ft. Air escapes under the skirt of the hovercraft, and an equal amount of air must be supplied by the fan. The gap between the skirt and the ground is 0.05 inches. Take =0.07518lbm/ft3,=1.227105lbm/fts. (a) What is the air pressure under the hovercraft in psig? (b) What is the volumetric flow rate through the skirt in ft3/s ? (You will need to find v first!) (c) If the fan is 80% efficient, what is the power requirement of the fan in hp