4. Angelo was choosing springs to use their door. He noticed that spring A was stiffer than spring B; that is ka> kB. Which spring will have more elastic potential energy stored if (a) they are compressed the same distance and (b) if the same force is applied on them?

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Q: 1. A block of mass 3.0kg is pressed against a spring (k=3,100N/m) near the bottom of a board…

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