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Practice_Test_5 - 1 Practice Test 5 1 A mass hung from the...

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1 Practice Test 5 1. A mass hung from the end of a spring is executing simple harmonic motion. Where is the potential energy of the oscillating mass a maximum? a. At the equilibrium position b. At the two extreme positions c. Midway between the equilibrium position and the upper extreme d. Midway between the equilibrium position and the lower extreme 2. Where is the kinetic energy of the oscillating mass in question 1 a maximum? 3. The total energy of the oscillating object in question 1 is 4. The acceleration of the oscillating mass in question 1 is 5. The restoring force on the oscillating mass is a. always in a direction opposite to the displacement b. always in the direction of displacement c. always zero d. always a constant 6. The restoring force on the oscillating mass is
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7. A 50 g mass is suspended from the free end of a spring of spring constant 40 N/m produces a displacement of 8.2 cm. What is the work done on the spring? 8. What is the potential energy of the spring in question 7? 9. In question 7, if the mass is pulled down by a distance of 5 cm and released, what will be its kinetic energy when it returns to the equilibrium position? a. 0.05 J b. 1.2 J c. 2.3 J d. 4.3 J
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