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Mach is the speed of an object expressed as a multiple of the speed of sound in the same medium. Thus, an object travelling at 686 metres per second through air, at sea level, is travelling at Mach 2 because sound would travel through it at 343 m/s. However, it the object was travelling under water at the same speed then it would be travelling at approx Mach 0.46 since sound travels at 1484 m/s through water.
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How fast is mach1?
Mach 1 is one times the speed of sound, which equals the speed of sound, which is 768mph.
What speed is mach 9?
Mach 9 = 3,062.61 m/s = 11,025.396 km/hrMach 9 is 9 times the speed of sound.
What is mach regarding speed?
That means the speed, compared to the speed of sound. For example, "mach 2" means twice the speed of sound.
How fast is a mach 10?
That means 10 times the speed of sound.That means 10 times the speed of sound.That means 10 times the speed of sound.That means 10 times the speed of sound.
What speed is 0.72 Mach?
0,72 Mach is a subsonic speed. Mach number = speed of an object/speed of sound The speed of sound in dry air at 20 0C is 1 236 km/h.
