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Problem: A 0.50 kg mass is placed on the end of a vertical spring that has a spring constant of 75 N/m and eased down into its equilibrium position.
Required:
Question 1: Determine the change in spring (elastic) potential energy of the system.
Question 2: Determine the system's change in gravitational potential energy.
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Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
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