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Suppose that two carts, with a compressed spring between them (but not attached to either cart),...

Suppose that two carts, with a compressed spring between them (but not attached to either cart), are free to roll on a level table. The carts have very different masses and are initially stationary. Consider frictional losses to be negligible. The spring is released and the carts move apart. Are the final kinetic energies of the two carts equal, or is one greater than the other (if so, specify which is greater)? Explain your reasoning using fundamental physics principles, laws, and definitions. Include appropriate diagrams and drawings.

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