Question

what is the speed of air 1.0003​

Answer 1

Explanation:

For typical air at room conditions, the average molecule is moving at about 500 m/s (close to 1000 miles per hour). Note that the speed of sound is largely determined by how fast the molecules move between collisions, and not on how often they make collisions.

Answer 2

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Explanation:

Air has lots of molecules but yet transparent enough to allow light. Thus, as this medium is denser than vaccum ,it makes light to refract as it enters from space to earth's atmosphere. Thus air has refractive index slightly greater than 1( 1 is the refractive index of space.)