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How fast does sounds travel?

Updated: 8/17/2019
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14y ago

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The speed at which sound will travel will depend on the medium through which it is moving. In dry air, sound moves at about 768 miles per hour. That's about 343.2 metres per second, or 1,126 feet per second. In a more dense medium like water, sound will travel some 4.3 times as fast as in air. In a solid, the speed of sound (which is generally independent of the frequency of that sound) will travel faster still. In a steel rail, that sound will travel some 15 times faster than sound in air. Use the link below for more information.
In dry air at 20 °C (68 °F), the speed of sound is 343 meters per second (1,125 ft/s). This equates to 1,235 kilometers per hour (767 mph) or about one mile in five seconds

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13y ago
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14y ago

768 miles per hour in air

3302 miles per hour in water

These figures are both at 20 degrees centigrade.

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