Question

 Why is the consideration of a black hole as a 'cosmic vacuum cleaner' so wrong?

Answer it doesn't move!!!!! and stuff far out can easily escape its field.
http://wiki.answers.com/Q/Why_is_the_consideration_of_a_black_hole_as_a_%27cosmic_vacuu...

Top Q&A For: Why is the consideration of a black hole as a '...

How does a black hole act as a vacuum cleaner?

It technically doesn't, given that a vacuum cleaner works via air pressure differences, and space is mostly a vacuum already. What it does do, is by an enormous amount of mass focused in a small po... Read More »
http://wiki.answers.com/Q/How_does_a_black_hole_act_as_a_vacuum_cleaner

Is a vacuum cleaner the same as a black hole?

yes, in a similie/metaphor kind of way. a black hole sucks in stuff, a vaccum cleaner does also.
http://wiki.answers.com/Q/Is_a_vacuum_cleaner_the_same_as_a_black_hole

What is the hole in the vacuum cleaner?

Its to reduce the suction at the business end.By opening the whole it allows air in, so the suction at the business end is reduced.
http://answers.yahoo.com/question/index?qid=20130420230914AALnvKS

A vacuum cleaner uses 800 W of power The voltage source is 100 V What is the current flowing through the vacuum cleaner?


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