59. Since the energy is proportional to the amplitude squared (see Eq. 15-21), we find the fractional change (assumed small) is ==2=2. 222′ −≈EEEdEEdxxxdxxdxxmmmmmmmThus, if we approximate the fractional change in
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.