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practice final

# practice final - Physics 1C Summer Session I 2011 Final...

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Physics 1C, Summer Session I, 2011 Final Exam Instructions: Do any 8 problems. Please do all work on separate sheets of paper, and hand in everything you want to be graded. Clearly mark the problems that you want graded, and box the answers. 1. A mass on a spring undergoes simple harmonic motion. The speed of the mass is given by the following expression: (a) What is the frequency of the mass's motion? (c) What is the total energy of the harmonic oscillator? 2. A string with a mass per unit length of 0.050 kg/m is tied down at both ends, 1 meter apart, and held under tension. The fundamental frequency of the string is 120 hz . (a) What is the 5th harmonic frequency? (b) What would be the fundamental frequency if the tension was doubled? 3. A jet aircraft flying 300 meters overhead produces a sound intensity level of 110 decibels on the ground. What is the total power produced in sound waves, in watts? (a)

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practice final - Physics 1C Summer Session I 2011 Final...

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