starstruck
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The black hole at the centre of the Milky Way galaxy is estimated to have a mass of about 3 x 10^6 Msun.
(a) What is the radius of this black hole?
(b) What is the "classical" orbital velocity of a body in a circular orbit just above the surface of the black hole? .
(c) If a body of mass=1 kg fell from infinity into the black hole, calculate the amount of energy it would liberate. Compare with the rest mass equivalent energy of the mass (E=mc^2).
(a) What is the radius of this black hole?
(b) What is the "classical" orbital velocity of a body in a circular orbit just above the surface of the black hole? .
(c) If a body of mass=1 kg fell from infinity into the black hole, calculate the amount of energy it would liberate. Compare with the rest mass equivalent energy of the mass (E=mc^2).