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Physics, 29.08.2020 02:01 trillsmith

A spherically spreading EM wave comes from an 1800-W source. At a distance of 5.0 m, what is the intensity, and what is the rms value of the electric field?

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A spherically spreading EM wave comes from an 1800-W source. At a distance of 5.0 m, what is the int...

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