A 75-kW radio station broadcasts its signal uniformly in all directions. (a) What is the average intensity

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A 75-kW radio station broadcasts its signal uniformly in all directions.
(a) What is the average intensity of its signal at a distance of 250 m from the antenna?
(b) What is the average intensity of its signal at a distance of 2500 m from the antenna?
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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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