Units of measurement
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Mach (Mach)
Kilometer per minute (km/min)
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Information
Mach (Mach)
Mach is a unit of speed based on the speed of sound in air. Mach 1 is equal to the speed of sound, which varies with air temperature (approximately 343 m/s at 20°C).
Kilometer per minute (km/min)
Kilometer per minute (km/min) is a unit of speed equal to one kilometer traveled per minute. It is often used in transport and geographic calculations.