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For positronium, the method utilizes the reduced mass also, but In such cases, it's precisely the electron mass divided by 2. For just about any value of the radius, the electron as well as positron are Every single shifting at fifty percent the pace all-around their widespread Heart of mass, https://cristianryejn.wikilinksnews.com/5431942/the_best_side_of_treppensteiger

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