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How fast does sound travel?

The answer to this depends on the material it is traveling through. 
  • In air, sound waves travel at around 330 metres/second (when the air temperature is 0 degrees centigrade). 
  • At 40 degrees centigrade (a very very hot day) the velocity increases to 354 metres/second in air. 
  • Sound in water goes much faster, around 1500 metres/second.

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