How fast is Mach 1 Mach 2 and Mach 3?
Mach 1 is the speed of light in a vacuum. Mach 2 is the speed of sound in a medium of gases. Mach 3 is the speed of sound in a medium of liquid substances. What speed is mach10? Mach10 is a speed that is equal to 10 times the speed of light in a ... Read more...