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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
11
Vibration 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: Energy Transported by Waves
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11-11: Interference
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11-12: Standing Waves; Resonance
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 35
Q

A fisherman notices that wave crests pass the bow of his anchored boat every 3.0 s. He measures the distance between two crests to be 7.0 m. How fast are the waves traveling?

A
2.3 m/s2.3 \textrm{ m/s}
Giancoli 7th Edition, Chapter 11, Problem 35 solution video poster
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VIDEO TRANSCRIPT

This is Giancoli Answers with Mr. Dychko. Wave speed is frequency times his wavelength. Or we can write, since the frequency is 1 over period, we can write this as wavelength divided by period. The distance between crests is the wavelength and that's 7 meters. And the time between crests the period and that's 3 seconds. So, 7 over 3 is 2.3 meters per second.

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Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.