Matter ingestion rate of blackholes

AI Thread Summary
The discussion centers on the ingestion rate of matter by black holes and its implications for the universe. It is clarified that matter falling into a black hole does not exit our universe; instead, it retains its gravitational influence. The rate of matter consumption is linked to the black hole's mass, and calculations exist to estimate the matter consumed based on size. However, the concept of black hole entropy suggests that this consumption is more about the black hole's horizon area rather than a direct loss of matter from the universe. Overall, the conversation highlights the complexities of black hole physics and the nature of matter within them.
rjpearce
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Sorry if my questions are rather naive, this is my first post on this forum.
Whilst burshing my teeth, I was watching water drain from the sink and came up with a few rather curious questions.

Does the ingest of matter suggest by black holes suggest that the pressure of our universe is higher than that of the destination universe/multiverse?

Does the rate of matter consumption for black holes depend entirely on the size/mass?

Is there any calculation that exists to calculate the amount of matter consumed by a black hole of a specific size?

Could this be used to estimate the total amount of matter lost from our universe owing to black holes?

If so, is there any calculation that can be done to estimate the size of the destination universe/multiverse based on the ingest of matter from our universe?

Thanks
-Richard
 
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Matter that falls into a black hole does not 'leave' our universe. A black hole continues to affect other objects in the universe with the collective gravity of all the matter it has 'consumed'. It is reasonable to assume this means the matter captured by a black hole at least retains its gravitational identity.
 
rj Welcome to the forum. I look upon matter inside a BH as being at the lowest possible level of gravitational potential energy. Energy must have been released on the way in. That's about as much as I hopefully know, let's see what the others say.
 
matter consumption = whatever matter goes into the black hole

and as chronos said the matter is still in our universe

the only type of matter "consumption" is black hole entropy(http://en.wikipedia.org/wiki/Black_hole_thermodynamics), which can be seen as absorbing virtual particles of negative mass, and that's only proportional to the horizon area of the black hole itself
 
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