1.

Tell me the velocity of sound ?​

Answer»

Explanation:

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 (68 °F), the speed of sound in AIR is about 343 metres per SECOND (1,235 km/h; 1,125 ft/s; 767 MPH; 667 kn), or a kilometre in 2.9 s or a mile in 4.7 s.



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