2006-06-06 08:40:55 · 6 answers · asked by DOLLY 1 in Science & Mathematics ➔ Physics
Your question is incomplete, part of it looks to be cut off.
This is just a guess, but the question almost seems like it is asking how long after the student claps his hands does he hear the eco bounce back off the wall.
In this case, one would need to know the speed of sound (or one could just estimate it to be about 340.29 m/s).
Since speed is given as distance traveled per unit time, one can calculate the amount of time it would take something traveling at a given speed to be the distance traveled divided by the speed. In this case with the sound, the sound traveled to the wall (165 meters) and back again (another 165 meters), for a total distance of 330 meters.
2006-06-06 08:53:21 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
It's gonna be a formula for speed of sound. It'll take x to go to the wall and x to make it back to you. So, you have to figure out the speed of sound, convert that into meters per second, and multiply by 330. which is the 165m X 2. That will give you the amount of seconds it takes for the sound to get back to you. Hope that helps.
2006-06-06 15:51:23 · answer #2 · answered by FangStu 3 · 0⤊ 0⤋
question: how long after his clap, he will hear his echo?
answer: 1 second, because the distance is 2 x 165 = 330 m, thats the distance, which the sound is taken away in one second. ;-)
2006-06-06 15:48:14 · answer #3 · answered by ugur_akgoz 2 · 0⤊ 0⤋
I think a part of your question got cut during posting. Check the question again.
2006-06-06 15:43:58 · answer #4 · answered by organicchem 5 · 0⤊ 0⤋
1 second ( if i really understand your question
2006-06-06 15:46:51 · answer #5 · answered by a_ebnlhaitham 6 · 0⤊ 0⤋
Do your own homework punk!
2006-06-06 15:42:00 · answer #6 · answered by TellMeWhy? 4 · 0⤊ 0⤋