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Correction for the speed of The Speed of Sound

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How fast is 571 meters per second?
It's about one-and-two-thirds times as fast as The Speed of Sound
The speed of The Speed of Sound is about 343 meters per second.
(in dry air at 20°C)
The speed of sound in dry air at 20°C (68°F) is 343 meters per second. Air is a relatively poor acoustic conductor, however, as sound will travel at speeds of between 1,497 m/s to 1,560 m/s in water, depending on its salinity.
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