Physics, 20.04.2020 07:47 brittanysanders

An astronomical source emits radio waves with a frequency of 450 MHz. a. If earth is 20 light years from the source, and we measure an intensity of 8.5 x 10-10 W/m2 here on earth, what is the power of the source? b. What is the amplitude of the electric field of the wave at our location?

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An astronomical source emits radio waves with a frequency of 450 MHz. a. If earth is 20 light years...

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