Question

what is the speed of sound ​

Answer 1

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• The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C, the speed of sound in air is about 343 metres per second, or a kilometre in 2.9 s or a mile in 4.7 s.

Answer 2

Answer:

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On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit (15 degrees Celsius) — is 761.2 mph (1,225 km/h).

Because gas molecules move more slowly at colder temperatures, that slows the speed of sound; sound moves faster through warmer air.