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THANKS...........word

2006-08-23 03:11:53 · 10 answers · asked by tom science 4 in Science & Mathematics Earth Sciences & Geology

10 answers

332m/s may be taken as the speed of sound.

The medium in which sound travel needs to be taken into consideration. For example, the speed of sound in water and in an iron pipe were measured and found to be approximately 4 and 16 times respectively the speed of sound in air. Air pressure and temperature may have an effect on the speed on sound.

Taking the speed of sound as 332m/s in air then,
332 m/s
332 * 60 m/ 60 s ( 60 seconds in a minute).
332 * 60 * 60 m/ 60 * 60 s ( 60 minutes in one hour).
332 * 60 * 60 m/ hr
332 * 60 * 60 m/ hr
1195200 m / hr
But 1m = 1∙093611111yd
1195200 * 1∙093611111yd /hr
1307084 yd / hr ( 1760 yards in one mile ).
1307084 / 1760 m / hr
742∙6613636 m.p.h (rounded off).
742∙66 m.p.h

2006-08-23 03:32:21 · answer #1 · answered by Brenmore 5 · 2 1

If you will go to the library and check on a book called "Yeager", you will learn a lot about the speed of sound, and the first human to go faster than the speed of sound. The actual figure in miles per hour is still debatable today. I once had a photograph of a jet fighter actually breaking the speed of sound. It is amazing anyone could have gotten this photo much less snapped the shutter on the camera at the precise time it took place, but they did, and it goes into detail of how they did it. It has not been that long ago since it was photographed, and I know there are some of those pictures floating around somewhere on the Internet. I must say; it has got to be one of the most fascinating pictures I have ever encountered. It looks like the plane is flying out of a mushroom! Check it out. Have fun!

2006-08-31 07:21:08 · answer #2 · answered by Anonymous · 0 0

There is no exact speed for sound. The speed varies with the medium employed (for example, sound waves move faster through water than through air), as well as with the properties of the medium, especially temperature.

A Mach(Ma), a unit of speed is defined as a ratio of the speed of an object or flow relative to the speed of sound in the medium through which it is travelling uses speed of sound too.

According tp thatd efinition, the speed of sound in air,at sea level, at a temperature of 15 °C (59 °F) and under normal atmospheric conditions, the speed of sound is 340 m.s-1 (1225 km.h-1 or 761 mph).

2006-08-31 07:14:06 · answer #3 · answered by Subakthi D 2 · 0 0

It isn't an exact number. It is about 761 mph at sea level at the equator at normal atmospheric pressure at 15 degrees Celsius. If any one of these factors changes then so does the speed of sound. It can vary between about 720mph to 780mph. It is much faster when it moves through liquid water or through solid materials such as steel or glass.

2006-08-30 15:00:43 · answer #4 · answered by TrickMeNicely 4 · 1 0

Any answer is an approximation because the precise speed is dependent on a number of factors including barometric pressure, altitude, temperature, humidity, etc.

Thus, unlike the speed of light which is absolute (although the number you usually see quoted is the speed of light in a vacuum because the OBSERVED speed is slowed by bumping into bits of matter when trying to measure outside a vacuum) the speed of sound is relative.

2006-08-23 10:54:20 · answer #5 · answered by Oh Boy! 5 · 1 0

The speed of sound depends on the medium through which it travels. Sound travels faster through water than it does through air, for example. And temperature also has a factor on the speed of sound, as does atmospheric altitude. Air travels slower the higher into the atmosphere you climb, until once out in the vacuum of space, the speed of sound becomes 0mph. Which means there's no sound in space, despite what Star Wars and Star Trek says. :-)

But at sea level, under normal atmospheric conditions, and at 59F, the speed of sound is 761mph.

2006-08-23 11:48:36 · answer #6 · answered by Jonathen 2 · 2 0

If you want the exact speed then you better supply the exact temperature, humidity and air pressure. The speed of sound varies with each of these factors.

2006-08-31 03:29:52 · answer #7 · answered by uselessadvice 4 · 0 0

There really is no exact speed of sound.
The speed vary is steel ,in sweet water, in salt water in different air densities, in the medium of space etc...and the temperature of space.

2006-08-23 12:52:58 · answer #8 · answered by goring 6 · 1 0

720

2006-08-23 10:17:06 · answer #9 · answered by b 4 · 0 1

It is a function of preassure, temperature of the air.

2006-08-23 11:23:27 · answer #10 · answered by Dr M 5 · 0 0

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