sound travels at 350 m/s in warm air. "If you hear the echo in 10 seconds, how far away is the reflecting surface?
The sound travels both ways.
2*distance=350*10
1,750 meters, since you're hearing the echo, and the ehco is twice the distance. So, you'd take 350 * 10 / 2 or just 350 * 5.
To find the distance to the reflecting surface, we can use the formula:
Distance = (Speed of sound × Time) / 2
In this case, the speed of sound (in warm air) is given as 350 m/s, and the time it takes for the echo to be heard is 10 seconds.
Plugging these values into the formula:
Distance = (350 m/s × 10 s) / 2
Distance = (3500 m) / 2
Distance = 1750 m
Therefore, the reflecting surface is approximately 1750 meters away.