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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 6th Edition
11
Vibrations and Waves
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11-1 to 11-3: Simple Harmonic Motion
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11-4: Simple Pendulum
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11-7 and 11-8: Waves
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11-9: Wave Energy
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11-10: Intensity Related to A and f
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11-12: Interference
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11-13: Standing Waves; Resonance
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11-14: Refraction
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11-15: Diffraction
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Problem 47
A
a) 4.6×109W/m24.6 \times 10^9 \textrm{W/m}^2
b) 2.3×1010W2.3 \times 10^{10} \textrm{W}
Giancoli 6th Edition, Chapter 11, Problem 47 solution video poster
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