Question: A spring stores potential energy Uo when it is compressed a distance xo from its uncompressed length. (a) In terms of Uo, how much energy

A spring stores potential energy Uo when it is compressed a distance xo from its uncompressed length.
(a) In terms of Uo, how much energy does it store when it is compressed (i) twice as much and (ii) half as much?
(b) In terms of xo, how much must it be compressed from its uncompressed length to store (i) twice as much energy and (ii) half as much energy?

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