Over the course of 30 seconds, 3 waves hit the shore. What is the period of the waves?

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Explanation:

3 per 10 seconds.

Explanation:

If it's 30 seconds and 3 waves hit throughout that time period, dividing should get you your answer..

30/3 = 10.

Hope this helped!

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answer; /// the above statement is (true);

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.