Question

the speed of sound ____ ​

Answer 1

Answer:

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.

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Answer 2

Answer:

343 m/s

Explanation:

the speed of sound is 343 m/s