Tuesday, April 21, 2009

Waves and Oscillations

April 22 Happy Earth Day!!

HW 1: Due on Thursday, April 23

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Read Sections 10.1, 10.5-- Hooke's Law, Simple Harmonic Motion

Do Chapter 10 Problems 1, 11, 16, 59, 67, 71

Hw 2: Due on Monday, April 27

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Read Sections 10.6-10.8-- Restoring Force and Damping

Due: Chapter 10 Problems 83, 92, 93, 95, 101

HW 3: Due on Wednesday, April 29

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Dig around a little and find a mathematical expression for the elastic potential energy stored in a spring. Take the derivative of this expression with respect to displacement. What do you end up with? Does this make sense? Explain.

HW 4: Due on Tuesday, May 5

Consider a mass suspended from a vertically oriented spring (i.e., the mass is hanging on/from the spring). You raise the mass a small height h above the equilibrium point and then let it fall. Find expressions for the energy of the mass when the mass is: a) at its maximum height, b) moving through the equilibrium point, and c) when the spring is fully extended and the mass is at its lowest point.