Can someone please tell me what the speed of sound is? All I can find is equations and stuff. Thanks so much
2007-07-12 15:37:22 · 8 answers · asked by Kellersmommy 2 in Science & Mathematics ➔ Physics
344 m/s (1238 km/h, or 769 mph, or 1128 ft/s
Thats at STP (standard temperature and pressure)
2007-07-12 15:40:33 · answer #1 · answered by therealchuckbales 5 · 0⤊ 0⤋
In a gas, the molecules are flying around haphazardly. The greater the temperature of that gas, the faster the molecules are moving. It turns out that the speed of sound in a gas (such as air) is equivalent to the average speed of all the molecules in the gas.
The average molecular speed goes as the square root of the temperature of the gas. So, if you make the gas 9 times as hot, the speed of sound will be 3 times as high in that gas.
Basically, the speed of sound (in any material) is the speed at which a pressure disturbance will travel. Your vocal cords vibrate back and forth in the air, causing alternating high- and low-pressure disturbances. These travel out of your mouth and through the air at the speed of sound. In air at a typical Earth temperature, the speed of sound is about 761 miles per hour.
2007-07-12 22:44:47 · answer #2 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
it is the speed that sound travels at. Like when you say HI and some one hears that. Thats the speed of sound. Fast huh?
2007-07-12 22:43:11 · answer #3 · answered by Michael B 2 · 0⤊ 0⤋
Would depend on density of medium and location (altitude and geographical location) due to gravitational factors. Generally speaking with all standard conditions it is 760 mikes per hour......
2007-07-12 22:55:45 · answer #4 · answered by Knarf 5 · 0⤊ 0⤋
speed of sound is dependant on temperature and the substance it is in at room temperature (21C) the speed of sound in air is 344m/s
2007-07-12 22:41:53 · answer #5 · answered by Jay 3 · 0⤊ 0⤋
You didn't say in what medium and under what conditions. If for air under STP, answer already given by others.
2007-07-12 22:46:15 · answer #6 · answered by ╡_¥ôò.Hóö_╟ 3 · 0⤊ 0⤋
About 750 mph (in air ).
STP is not room temp. Its 0°C. at sea level !
2007-07-12 22:45:02 · answer #7 · answered by Ren Hoek 5 · 0⤊ 0⤋
331 m/s
2007-07-12 23:03:16 · answer #8 · answered by Daniel C 2 · 0⤊ 0⤋