(Solution) - Assume unrealistically that a TV station acts as a point -(2025 Original AI-Free Solution)

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Assume (unrealistically) that a TV station acts as a point source broadcasting isotropic ally at 1.0 MW. What is the intensity of the transmitted signal reaching Proxima Centauri, the star nearest our solar system, 4.3 l y away? (An alien civilization at that distance might be able to watch X Files.) A light-year (l y) is the distance light travels in one year.