A pitot static probe is used to determine the airspeed of an airplane that is flying at an altitude of 6000m. if the stagnation pressure is 4.8540x10^4 n/m^2 , what is the airspeed? what is the pressure recorded by a gage that measures the difference between the stagnation pressure and the static pressure? how fast would an airplane have to fly at sea level to produce the same reading on this gage?