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Problem: A roller coaster car is going over the top of a 16m radius circular rise. At the top of the hill, the passengers "feel light," with an apparent weight only 60% of their true weight.
Part A: How fast is the coaster moving?
Show all work, use additional paper if necessary.
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when a mass of 180g is attached to a vertical to a vertical spring and lowered to its equilibrium position, it is found that the spring extends 12cm. what is the period of the resulting oscillations
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