Energy can be stored or transferred, but it cannot be lost. Allison and Brian are holding the two ends of a rope. Allison then begins shaking her end of the rope up and down to create waves, which travel one after another toward Brian.
If Brian holds his end of the rope still, without allowing his arm to move, what will occur when the first wave reaches Brian?
Explanation
If Brian’s arm were relaxed, the wave energy would work to move his arm up and down, thereby absorbing the energy. But since Brian is not allowing himself to absorb the wave energy, that energy will reflect back toward Allison.
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