C7 - The spring is compressed to 1/3 its unstretched length...

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C7: Some Potential Energy Functions
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Two identical lumps of clay are initially moving toward each other with the same speed in outer space. They hit each other and stick together. Is momentum conserved in this process? Is energy conserved?
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A spring with spring constant k and unstretched length L has one end attached to the ground and another end attached to a block of mass m.
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Unformatted text preview: The spring is compressed to 1/3 its unstretched length and the system is released from rest. What is the speed of the block when the spring is (momentarily) unstretched? How hard do you have to throw a rock to hit the moon? Neglect air resistance....
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C7 - The spring is compressed to 1/3 its unstretched length...

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