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3. A 1-kilogram mass hangs at rest from an ideal spring and it stretches by 1...

3. A 1-kilogram mass hangs at rest from an ideal spring and it stretches by 1 centimeter. If a 10-kilogram mass were hanging at rest from the spring instead, the stored spring potential energy would increase by: A. 1 times (the stored energy would the the same) B. √ 10 times C. 10 times D. 100 times

answer is d can someone explain why?

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