MESSAUL PT Question3 A transverse wave travels along a string. Which of the foll

Question

MESSAUL PT Question3 A transverse wave travels along a string. Which of the following is true? The average kinetic energy is greater than the average potential energy The average kinetic energy is less than the average potential energy. O The average kinetic energy is equal to the average potential energy. Click if you would like to Show Work for this question: Open Show Work Question Attempts: 0 of 1 used Copyright© 2000-2016 by John Wiley & Sons, Inc. or related companies. All rights r ared/assignment/test/aglist.ur

Explanation / Answer

When the string element is at its y = A ( maximum amplitude ) its length is normal undisturbed value of dx.

However when the element is rushing through its y = 0 ( minimum amplitude ) it has maximum stretch and

thus maximum potential energy.

   Thus oscillating string instrument has both its maximum kinetic energy and maximum elatic potential energy simultaneously at y = 0.

Answer : THE AVERAGE KINETIC ENERGY IS EQUAL TO AVERAGE POTENTAIL ENERGY . So option C is correct.

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