what is the black hole?

Answer 1

a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull not even a light can escape. Since our best theory of gravity at the moment is Einstein's general theory of relativity, we have to delve into some results of this theory to understand black holes in detail, but let's start of slow, by thinking about gravity under fairly simple circumstances.
Suppose that you are standing on the surface of a planet. You throw a rock straight up into the air. Assuming you don't throw it too hard, it will rise for a while, but eventually the acceleration due to the planet's gravity will make it start to fall down again. If you threw the rock hard enough, though, you could make it escape the planet's gravity entirely. It would keep on rising forever. The speed with which you need to throw the rock in order that it just barely escapes the planet's gravity is called the "escape velocity." As you would expect, the escape velocity depends on the mass of the planet: if the planet is extremely massive, then its gravity is very strong, and the escape velocity is high. A lighter planet would have a smaller escape velocity. The escape velocity also depends on how far you are from the planet's center: the closer you are, the higher the escape velocity. The Earth's escape velocity is 11.2 kilometers per second (about 25,000 m.p.h.), while the Moon's is only 2.4 kilometers per second (about 5300 m.p.h.).

Answer 2

Even though it is spoken of as being a fact, black holes are a theory. Were you to determine the speed of a mass released at a distance of 0.716 miles from the center of our planet, you would find that the mass would exceed the speed of light in one second. In our sun the distance is 400 miles from its center. If black holes were a possibility, there would exist one within the center of our sun. http://360.yahoo.com/noddarc

Answer 3

A black hole is an oject that consumes all matter, even light due to its enourmous gravitational pull. Nothing can escape it, if you begin to get pulled by it, there is no escaping it. In theory, the universe is currently being devoured and torn apart by black holes-in theory.

Answer 4

a way to keep the black man down

Answer 5

also its the glue that keeps things together. well galexeys anyways. there is a blck hole keeping all the galexes spinning. with out them everything would drift apart.

they are like the sun is to the planets.

Answer 6

It's a way to keep the white man down.

Answer 7

Hi. The bottom of a immense gravitational well.