When a Hooke's law spring is stretched a distance 3x, how much is the increase in energy stored in it from when it was stretched a distance x? Give your answer in terms of a multiple of the energy stored in the spring when it is stretched a distance x

a. It is 3 times as much.
c. It is 4 times as much.
b. It is 8 times as much.
d. It is 9 times as much.


B

Physics & Space Science

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