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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
22
Electromagnetic Waves
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22-1: B Produced by Changing E
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22-2: EM Waves
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22-3: Electromagnetic Spectrum
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22-4: Measuring the Speed of Light
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22-5: Energy in EM Wave
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22-6: Radiation Pressure
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22-7: Radio, TV
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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 14
Q

Electromagnetic waves and sound waves can have the same frequency.

  1. What is the wavelength of a 1.00-kHz electromagnetic wave?
  2. What is the wavelength of a 1.00-kHz sound wave? (The speed of sound in air is 341 m/s.)
  3. Can you hear a 1.00-kHz electromagnetic wave?
A
  1. 3.00×105 m3.00 \times 10^5 \textrm{ m}
  2. 0.341 m0.341 \textrm{ m}
  3. No, your ears can not detect electromagnetic waves. That's what your eyes are for, although your eyes can't see such a long wavelength.
Giancoli 7th Edition, Chapter 22, Problem 14 solution video poster
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COMMENTS
By william.g.parker on Wed, 4/4/2018 - 10:46 PM

You wrote 0.314 as the answer for B instead of 0.341

By Mr. Dychko on Wed, 4/4/2018 - 10:52 PM

Fixed! Thank you!

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