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Forget the altitude. Care about the temperature!
The speed of sound is dependent on the temperature and not on the air pressure of the altitude. At 20 degrees celsius or 68 degrees Fahrenheit the speed of sound is 343 m/s or 1236.3 km/h or 1126.7 ft/s or 667.1 knots.
Scroll down to related links and look at "Speed of sound - temperature matters, not air pressure".
Here is an easy calculator if you know the temperature. Do not care about the altitude!
Scroll down to related links and look at "Calculation of the Speed of sound in air and the important temperature".
Asume a temperature of -70 degrees Celsius for a height of 44,000 feet.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoForget the height and the air pressure. The speed of sound has only to do with the surrounding temperature. Scroll down to related links and look at "Speed of sound c in air and the important temperature".
Wiki User
∙ 15y agoThe speed of sound depends only on the temperature and never on the height. Scroll down to related links and look at "Speed of sound - temperature matters, not air pressure".
Wiki User
∙ 15y agoForget the altitude. Go only for temperature.
Scroll down to related links and look at "Speed of sound - temperature matters, not air pressure".
Wiki User
∙ 11y agoAbout 675 MPh, 1,087 k/ph or 587 knots.
Wiki User
∙ 11y ago345m/s
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How is the speed of light and speed of sound related?
The speed of light is about 900,000 times as fast as the speed of sound in air.
How fast can you listen?
At the speed of sound
How fast is the speed of sound in knots?
The speed of sound measured at sea level is 661.47 knots.
What best describes a flight approaching the speed of sound?
If accelerating to the speed of sound, the subsonic.
How fast is the speed of sound-?
" Sonic ", like the speed at which teens used to tool their hot-rods into the drive-in to get their hamburgers.
How fast is the speed of sound at high elevation?
You'd need to know the barometric pressure at the elevation in question to be able to calculate it, but it will be veryslightly lower than at sea-level thanks to the lower density of the air at altitude.Average sound speed in air seems to depend on which source you find, but it's around 344m/s in still air.
How is the speed of light and speed of sound related?
The speed of light is about 900,000 times as fast as the speed of sound in air.
How fast can you listen?
At the speed of sound
How fast is echolocation?
It is slower than half the speed of sound.
How fast is the speed of sound in knots?
The speed of sound measured at sea level is 661.47 knots.
How fast will a bulldozer go?
the speed of sound
How fast subsonic speed?
Less than the speed of sound in that medium.
How fast is mach1?
Mach 1 is one times the speed of sound, which equals the speed of sound, which is 768mph.
What best describes a flight approaching the speed of sound?
If accelerating to the speed of sound, the subsonic.
How fast is the speed of sound in a vacuum?
Sound waves cannot travel in a vacuum.
How fast is mach2.5?
2.5 times the speed of sound....
How fast is hypersonic?
five times the speed sound.
