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an Astronomy question, please answer it comprehensively. Thank you 1. When confronted by a passerby who...

an Astronomy question, please answer it comprehensively. Thank you

1. When confronted by a passerby who insists that black holes do nothing but ‘suck’ in everything around them you are able to set them straight using knowledge you gained from your class. Please briefly lay out an argument about what black holes actually do and explain why the passerby is mistaken.

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Answer #1

Black holes are puncture in spacetime and are remnant of collapse of type A supernova . The ignorant notion about black holes is that they suck everything is wrong because if an object has enough velocity around black hole so that gravitational force on it by black hole balances centrifugal force, it would continuously orbit the block hole as earth orbit the sun . But if object doesn't have enough velocity then its orbital radius starts to decrease and finds stable orbit but if stable orbit is less than event horizon of black hole then object gets sucked in because at event horizon speed should be equal to light speed and higher further inside which is not possible so object finally gets crushed into singularity of black hole.

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