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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
An 800-kHz radio signal is detected at a point 9.5 km distant from a transmitter tower. The  field amplitude of the signal at that point is 0.23 V/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. What is the average electromagnetic energy density at that point? (c = 3.0 × 108 m/s, μ0 = 4π × 10-7 T ∙ m/A, ε0 = 8.85 × 10-12 C2/N ∙ m2)
A) 2.3 × 10-13 J/m3
B) 3.3 × 10-13 J/m3
C) 4.7 × 10-13 J/m3
D) 6.6 × 10-13 J/m3
E) 9.4 × 10-13 J/m3
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College Physics

College Physics


Edition: 1st
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slicealemonslicealemon
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7 years ago
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Chery Author
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#2
7 years ago
Thanks a million
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#3
7 years ago
Are you doing the questions found at the end of the chapter? They should help you with the others too
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