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I did some research over the internet, and the best answer I can come up with as to why light is faster than sound is that the speed that sounds travels at depends on the density of the air, and the density of air depends on the temperatureof the air. Thus, sound travels at a lower rate of speed than light, depending on the temperature, unless it is extremely hot outside. The speed of light is 299,792,458 meters-per-second (m/s), which is approximately 186,000 miles per second. This speed is usually the same, no matter the temperature or density of the air when light is traveling through it. The speed is sometimes reduced when traveling through media that have particles containing mass, as it will bounce off of the particles. The speed reduction, as far as I know, is not significant. Sound waves travel at a lower rate of speed due to the fact that the speed sound travels at depends on the density of air, and the density of air depends on the temperature. I found a website that allows you to calculate the speed of sound. The "speed of sound calculator" allows you to enter a certain temperature in Fahrenheit, Celcius, Kelvin or Rankine, and it will convert the temperature degree into five measurements of speed. According to the website, which is in the Sources box, the hotter the temperature, the faster the speed of sound.

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12y ago

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