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What is the average magnitude of the Poynting vector 7.00 mi from a radio transmitter broadcasting isotropically (equally in all directions) with an average power of 300 kW? μW/m2

What is the average magnitude of the Poynting vector 7.00 mi from a radio transmitter broadcasting isotropically (equally in all directions) with an average power of 300 kW? μW/m2

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What is the average magnitude of the Poynting vector 7.00 m i from a radio transmitter broadcasting isotropically (equally in all directions) with an average power of 300 k W ? ◻ μ W / m 2

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