A pitot tube in a wind tunnel is measuring a pressure drop P=1.04lb f /ft 2 in an air steam. ambient temperature is 72 F, and pressure is 14.55psia. Calculate the air velocity in ft/s. You can assume that air can be modeled as an ideal gas in order to find it density (in lb l /ft 3 ) Use R (gas constant )=10.73 psia.ft