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Question
Supermassive black holes are thought to exist at the center of many galaxies. (a) What is the radius of such an object if it has a mass of $10^9$ Suns? (b) What is this radius in light years?
1. $2.95\times 10^{12}\textrm{ m}$
2. $3.12\times 10^{-4}\textrm{ ly}$
Solution Video