FAQ

What is the Mach Number?
The Mach Number is a dimensionless quantity representing the ratio of the speed of an object to the speed of sound in the surrounding medium. Mach Number is usually measured using the Meter per Second for Speed. Note that the value of Mach Number is always positive.
Can the Mach Number be negative?
No, the Mach Number, measured in Speed cannot be negative.
What unit is used to measure Mach Number?
Mach Number is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Mach Number can be measured.
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