Write down the factors on which speed of soundin air depend​

The speed of sound varies greatly depending upon the medium it is traveling through. The speed of sound in a medium is determined by a combination of the medium's rigidity (or compressibility in gases) and its density. The more rigid (or less compressible) the medium, the faster the speed of sound.

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carla slowed down in the beginning of her trip, stopped, and then sped up