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Physics 21 Online
OpenStudy (anonymous):

What is a black hole?

OpenStudy (hoblos):

you can search google for it here is a link that may help http://en.wikipedia.org/wiki/Black_hole

OpenStudy (aravindg):

hi u thr?

OpenStudy (aravindg):

i can hlp

OpenStudy (aravindg):

lnopeki?

OpenStudy (anonymous):

It is formed when massive stars collapse

OpenStudy (anonymous):

But does a black hole have enough power to absorb light? Does it absorb matter too?

OpenStudy (anonymous):

black holes are massive object so it has great gravitation force. I don't know about absorbing light. but light can't escape due to its gravity.Instead they form a horizon

OpenStudy (anonymous):

If you can't see the black hole, doesn't that mean that it does infact have some kind of gravitational pull on light?

OpenStudy (anonymous):

it's because lights from it doesn't escape

OpenStudy (anonymous):

So basically all light that comes into it is stuck. But all matter that goes into a black hole must go somewhere, where does it end up?

OpenStudy (anonymous):

it gets stretch like a spaghetti

OpenStudy (jamesj):

The matter accumulates with the existing matter in the black hole.

OpenStudy (anonymous):

the difference with force of gravity between for feet and head is so great. It would stretch it out. remember 1/r^2 law

OpenStudy (anonymous):

So what you're saying is that if i was near a black hole i would strech out and become taller so it can sink me into it? And that nearby planets would become kind of like cylinders after a while?

OpenStudy (anonymous):

according to me it has so much gravitational pull that it can pull a body wd extrmly high accerlation and can expand any thing due which color of tat body shifts to red ....we can move at speed of light if a force equals to gravity of black hole will accerlate us...

OpenStudy (anonymous):

i suppose it as time machine..;P

OpenStudy (aravindg):

james

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