I believe you mean "why does it matter how fast sound can travel?"
There are many reasons for why it matters to know how fast sound travels. it can help with determining the distance of a lightning storm, tuning instruments, and is helpful with ballistics.
-Tychusfindlay919
No matter what you do to either of them, light is always going to travel at least several hundred times as fast as sound, and most generally about 800 thousand times as fast as sound. Sound will never travel faster than light, in any situation.
there is no air in a vaccum. and sound needs air for the sound waves to travel through.
It doesn't matter. If you fast travel he will travel there with you. So if you want summary it doesn't matter.
Yes. Sound is produced by vibrating matter, such as a string or arts of the inner ear, so it cannot travel if there is no matter to vibrate.
Oxygen
Sound waves travel through the three states of matter (gas, liquid and solid) by vibrations.
Sound waves travel through matter. Our atmosphere is a mixture of gases which is a form of matter. Sound waves will travel through our atmosphere, even if there is no human ear to receive it.
No, it can't.
A vacuum is a region empty of matter through which sound cannot travel. In a vacuum, there are no particles to transmit sound waves, so no sound can be heard.
no from what i have learned light travels faster then sound
Sound requires a medium, such as air or water, to travel as it relies on the vibration of particles within the medium to propagate. In a vacuum, there are no particles for sound waves to interact with and transmit energy, which is why sound cannot travel through it.
Solids