Question

explain how an echo from a cliff could be used to measure the speed of sound in air

Answer 1

Answer:

Explanation:

You stand a long distance from a wall, clap, and listen for the echo. The distance travelled is twice the distance from you to the wall (because the sound has to travel to the wall and back). ... This time can then be used to calculate an average time for the sound to travel to the wall

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Answer 2

Answer:

Speed = Distance divided by time

Explanation:

To work out the speed of the sound in metres per second, divide the distance in metres by the average time in seconds. For example 170 metres divided by 0.50 seconds = 340 m/s. If you want Feet Per second Just divide that answer by 3!