** note: problems 1, 3 and 5 (of HW4) are especially relevant to midterm preparation..**
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Also, for the midterm, you should be able to do intitial value problems
for the underdamped, overdamped, and critically damped oscillator.
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and understand how to do driven oscillator fourier series problems (like #1).
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you should also be comfortable with simple differential equations--- simple, easy ones,
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Be prepared for problems involving that oscillator box thing,  |/|xxxxx|m|xxxxx|/|
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what if we accellarate it, or it is moving at a constant speed and then suddenly
stops?  or it drops down an elavator shaft and then hits the ground and stops.
what would the mass do??
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