Lecture 10: Normal Modes II

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Estimate surface tension
estimation... More about surface tension and latent heat
Question about friction and sink plungers
Normal Modes Recap General equation of motion
Normal Modes Recap Example 1 with masses and springs
Normal Modes Recap The three big messages of normal modes
Normal Modes Recap Example 2 with 2 masses and 3 springs Intuition for normal modes
Normal Modes Recap high frequency mode
Proof of "point 2" general proof for the case a = - A x
Proof of point 3 for the special case of example 2
Proof of point 3 finished
Q: what is potential energy
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