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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 42
Q

A satellite beams microwave radiation with a power of 13 kW toward the Earth’s surface, 550 km away. When the beam strikes Earth, its circular diameter is about 1500 m. Find the rms electric field strength of the beam.

A
1.7 N/C1.7 \textrm{ N/C}
Giancoli 7th Edition, Chapter 22, Problem 42 solution video poster
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