2006-07-12 11:17:21 · 7 answers · asked by John 1 in Science & Mathematics ➔ Physics
how fast in MPH
2006-07-12 11:29:41 · update #1
I am assuming you are asking for the speed of sound in air.
It would be 344m/s in dry air @ 20 deg. C
If the medium is water than the speed is 1482m/s @ 20 deg. C.
2006-07-12 11:25:04 · answer #1 · answered by galactic_man_of_leisure 4 · 1⤊ 0⤋
The speed of sound is approximately 740 MPH at sea level and decreases with greater altitude. At 80,000 feet the speed of sound is approx. 405 MPH. The old U2's were exceptionally hard to fly at high altitudes because they were strictly subsonic and at 80,000 ft their stall speed and speed of sound were only 10-15 MPH difference. It took great skill to control them.
Sorry for the ramble.
2006-07-12 12:50:24 · answer #2 · answered by FrogDog 4 · 0⤊ 0⤋
The speed of sound at sea level is approximately 770 feet per second.
2006-07-12 12:06:08 · answer #3 · answered by apeakay 2 · 0⤊ 0⤋
FAST! As fast as you saying the word "fast" out loud... yeah that fast!
But then if you say it slowly like "fffaaaaaaaaaaaaaassssstttt" it travels slower... so AVERAGE it out
2006-07-12 11:24:21 · answer #4 · answered by o_ozzoo 1 · 0⤊ 0⤋
...and varies with the square root of the absolute temp. Lower temp = lower speed of sound
2006-07-12 11:23:57 · answer #5 · answered by Steve 7 · 0⤊ 0⤋
340 m/s and this varies on the medium of considerations
2006-07-12 11:41:54 · answer #6 · answered by smart 2 · 0⤊ 0⤋
340 m/s
2006-07-12 11:20:19 · answer #7 · answered by christigmc 5 · 0⤊ 0⤋