What is a black hole's escape velocity?

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01-03-2021
Physics

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What is a black hole's escape velocity?

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emilia410 emilia410 · Answer 1 · 2021-03-02T02:09:44-05:00

emilia410 emilia410

02-03-2021

ANSWER

The simplest definition of a black hole is an object that is so dense that not even light can escape its surface. If we squished the Earth's mass into a sphere with a radius of 9 mm, the escape velocity would be the speed of light. Just a wee-bit smaller, and the escape velocity is greater than the speed of light.

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