Question

At the event horizon of a black hole, the escape velocity is the speed of light. For a black hole with the same mass as the earth what would be the radius of the event horizon? What about for a black hole of 5 solar masses (one solar mass is 2 x 10^30 kg)?

Answer 1

Answer:

Explanation:

Only those objects launched with a speed greater than this escape velocity can get away from Earth. The escape velocity from the surface of the Sun is higher yet—618 kilometers per second.