Black Holes Black Holes A black hole is the f number necessary to take one away from ones own gravitational force. For example, the escape amphetamine of earth is adapted to 11 km/s. anything that wants to escape earths gravitational force or pull must go at least 11 km/s, no matter what the thing is . The escape velocity of an object depends on how compact it is; that is, the ratio of its mass to radius. A black hole is an object so compact that, soaked to it, even the speed of light is not fast profuse to escape. A common oddball of black hole is the type produced by some dying headliners.
A star with a mass greater than 20 times the mass of our lie may produce a black hole at the end of its life. In the normal life of a star there is a constant tug of war mingled with gravity pulling in and pressure pushing out. atomic reactions in the core of the star produce enough push button to push out. For most of a stars life, gravity and pressure relief each other exactly, and so the star is stable. How...If you want to write down a full essay, order it on our website:
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