Convert mach (0 Celcius 1 atm) to megameter/hour
Selected category: speed.
Definition and details for mach (0 Celcius 1 atm):
Mach (M or Ma) is a relative speed unit, used to compare an aircraft's speed with the speed of the sound in the atmosphere. It was named "Mach" to honor the Austrian physicist Ernst Mach (1838-1916). But because sound speed value depends on the density and temperature of the air, sometimes mach is calculated at 0 ºC and a pressure of 1 atmosphere. Conversion center, here uses these initial conditions.
Definition and details for megameter/hour:
Megameter per hour is a unit of velocity equal to about 277.778 m/sec