1. Determine the Mach number of a meteor traveling at 5000. m/s through still air at 0.00°C.
2. Determine the Mach number of a bullet traveling at 3000. ft/s through still air at 70.0°F.
3. The rotor of an axial flow air compressor has a diameter of 2.30 ft. What is the maximum rpm of the rotor such that its blade tips do not exceed the local sonic velocity when the air in the compressor is at 150.°F?