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A mach is the speed of sound so mach 2.0 would be twice the speed of sound. The speed of sound actually changes based on altitude and weather. The higher you go the faster it travels because of less air resistance. Most folks generally accept the speed of sound to be 657 miles per hour at 10,000 feet.
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∙ 13y ago
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∙ 8y agoMach is a relative measure: the Mach number is the speed of an object travelling through a particular medium is the ratio of the object's speed relative to the speed of sound through the same medium. So mach 20, in air, for example, is much lower than mach 20 in steel because sound travels slower in air than it does in steel/
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∙ 8y agoThat's a tough question to answer, because the speed of sound depends on altitude,
and you haven't specified any.
Mach 20 = 20 times the speed of sound.
At sea level:
Speed of sound = 343 meters per second.
Mach 20 = (343 x 20) = 6,860 meters per second
= 4.263 miles per second
= 15,345 miles per hour.
Wiki User
∙ 8y ago20 meters per second is 44.74 miles per hour.
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∙ 8y ago20 times the speed of sound, which is approximately 768 mph, but depends on the temperature and pressure.
Wiki User
∙ 10y agoMach 20 is about 15,224 mph
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How many miles per hour is 3.3 mach?
Answer: 219,000 km/h = 136,080.291 mph
How fast is mach 3 in meters per second?
Mach 3.6 = 2,740.34 mph
How fast is Mach .88 in mph?
There is no finite answer to this, since the term Mach (the speed of sound through air or water) changes based on the temperature of the air itself. In 60 deg F air at sea level, Mach 1 is 761mph. In dry air at 68 deg F, mach 1 is 768 mph. Mach 1.4 is 1.4 x these speeds. Usually Mach speeds are used for objects travelling in air, but not always. Mach 1 in water is 4.3 times faster than air and Mach 1 in iron is 15 times faster than air.
How fast is mach 1.2 in mph?
It depends on air pressure and temperature, or altitude. On a sea level it will be around 9120 mph, on 36000ft it will be 7900 mph.
How fast is mach 9.6?
about 5100 mph
How fast is mach 20 in mph?
Mach 1 is about 762 mph, so mach 20 is about 15,240mph.
How fast is mach 20?
Mach 20= 15,200 miles per hour.Mach numbers are determined by the speed of the object divided by the speed of sound.The speed of sound is approx. 760 miles/hour - a Mach 1 number would be the speed of the object (760 mph) divided by the speed of sound (760 mph) = 1Mach 20 would be 20 times the speed of sound (760 mph) = 15,200 mph.It is absurd to think that the government just lost an aircraft flying at the speed of 700 billion mph!
What mph is Mach 3?
Mach 3 is 2283.6211 mph because Mach 1 equals 761.207033 mph.
What about Mach 4 in mph?
Mach 4 is about 3,045 mph
What mph is mach 63?
Mach 63 is about 46,717.3 mph
What is mach 10 in mph?
Mach 10 = 7,612.07 mph
What mph is mach 1.7?
Mach 1.7 is about 1,260.6 mph
What is mach 3 in mph?
Mach 3 = 2283.6211 mph
What is mph of Mach 3.5?
Mach 3.5 is about 2,664 mph
How fast is mach 23 in mph?
1,750.8 mph
What mph is mach 500?
Mach 500 = 380 603.525 mph
How many mph is 1.6 mach?
Mach 1.6 = 1,217.9 mph
