Units of measurement
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Mach (Mach)
Millimeter per second (mm/s)
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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).
Millimeter per second (mm/s)
Millimeter per second (mm/s) is a unit of speed equal to one millimeter traveled per second. It is used for measuring small speeds in engineering and science.