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An electric-dipole antenna is located on the roof of a 233-m-high building and is oriented vertically. An observer on the ground measures the intensity of the radiation from the antenna and finds 9.15 mW/m2. This observer is 1.05 km away from the antenna. A second observer hovers in a blimp at an altitude of 571 m and measures the radiation intensity from the antenna when she is 1.41 km from the antenna. What intensity, in milliwatts per square meter, does she measure?

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