3 ms·
If I use a machine to mechanically fling air at, say, 500 m/s, then it will move faster than the speed of sound relative to ambient air, until it gets slowed do
by ummonk 6y ago
If I use a machine to mechanically fling air at, say, 500 m/s, then it will move faster than the speed of sound relative to ambient air, until it gets slowed down and turns into a normal pressure wave.