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Physics, 24.02.2020 18:54 liltam9688
An inhabitant of a planet orbiting the star Betelgeuse observes the flash from the first nuclear weapon on Earth, exploded in July 1945. If this extraterrestrial being were to send a signal to Earth immediately to confirm this sighting by exploding a bomb of equivalent brightness, and astronomers on Earth were watching his planet, when would they expect to see the flash
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An inhabitant of a planet orbiting the star Betelgeuse observes the flash from the first nuclear wea...
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