Speed of sound and light
| Category |
|---|
| Trivia |
| Date Created |
| 6th Mar 2010 |
| Last Updated |
| 9th Jul 2010 |
Speed of sound and light
Question
What's the speed of sound and light?
Answer
Sound 791mph
Light 186,000 miles per second
Earth circumference is 25,000 miles
=> 25,000/186,000 = 0.1344 seconds
Whereas for sound 340.29 miles per second
approx 1 mile in 5 seconds
34 hours in dry air at 20C or 68F to travel around the earth