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What is the spring constant?
A 0.01 kg bullet is fired at 300 m/s at a 4 kg block that is sitting at rest on a level frictionless surface. The bullet becomes completely embedded in the block. This combination then slides along the surface for 10 cm until it hits amassless spring. When the spring is compressed by 8 cm, the block/bullet combination is at rest. Find the spring constant of the spring. 20 points)
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