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Answers by Andrew B.

Physics Question (answer)

This is a conservation of energy question. The block has a certain amount of potential energy before it is released, due to the compressed spring. This potential energy is equal to 1/2 k x^2. In this case, k (the spring constant) is 1.0x10^4 N/m and x (the spring's displacement) is 0.15m. This gives...