How do I calculate the speed of sound with its echo?

2016-02-21 6:25 am
The speed of an echo: 0.0080s
The temperature: 23 degrees Celsius
The length of the tube that the sound was played in is: 113cm.

回答 (1)

2016-02-21 7:34 am
✔ 最佳答案
You need the sound velocity
echo= 2 *L/velocity.
The sound velocity
velocity= 2L/time=2*113/0.008=26259cm/s= 282.59 m/s
Value from the website is 343 m/s at 20 degrees. At 23 it should be more. Your observations are correct but not accurate.


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