Answer:
Sound is a mechanical wave, meaning it can only travel through a medium unlike light or electromagnetic waves that can travel through vacuum of space
At 20 °C air the speed of sound is approximately 343 metres per second or 2.9 kilometres per second.
When the air is 35°C above, the speed of sound is supersonic (more than the speed of sound) and about 351.96 metres per second, this is because the air molecules are agitated and moving about constantly, causing the sound molecules to pass through easily.
