The speed of sound is 331 m/s:

in a vacuum
in air, water, or any other medium
in air at 0°C
in air at any temperature

Respuesta :

Answer:

331 m/s in air at 0 degC.

Explanation:

Cooler the air slower the speed of sound.

Normal air temp: 20 C/68 degF is 343m/s

0 m/s in a vacuum/outer space

faster yet in water