Miniature black holes. Left over from the big-bang
Chapter , Problem 5(choose chapter or problem)
Miniature black holes. Left over from the big-bang beginning of the universe, tiny black holes might still wander through the universe. If one with a mass of 1 $ 1011 kg (and a radius of only 1 $ 10%16 m) reached Earth, at what distance from your head would its gravitational pull on you match that of Earths?
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