application of newtons law of universal gravitation on the formation of black holes?
115592
I'm not sure I understand the question.  However, newton's laws of gravitation do not describe anything like black holes.  Black holes fall out of Einstein's theories of general relativity.
658056
The Schwarzschild radius(for those who want to be a pain in the butt, yes this is a simplified equation for a nonrotating mass but for our purposes should be a good approximation) is 2GM/c^2 where G is the gravitational constant 6.67e-8 dyne cm^2 g^-2, M is the mass of the object, and c is the speed of light(use cm/s^2 as units).  Basically when all the mass is contained within a radius smaller than this value, the gravitational metrics go a little crazy and this is defined to be a black hole.\n\nI leave it to you to do the math, see whether the accepted radius of a nucleus is within this radius or not and there is you answer.  There are other forces at play that cause the strong attractive forces within a nucleus, particularly strong nuclear force.  If this was gravity(which from above you should see the radius is a lot smaller than the radius of the nucleus in order to cause such effects), then the electrons would be sucked into nucleus as well, since you would have both an attractive coloumb force and an attractive strong gravitational force.\n\nThat being said, you would not see radiative activity if the nucleus was a black hole.
634270
i think the problem is when you try to apply general relativity - or gravity - to interaction betwen subatomic particles - especially when trying to understand how these forces worked during the first instant after the big bang. you wind up with nonsencial results - like zero equals one.
578115
I think that the gravitational attraction between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.\nF = G * m1*m2/r²
651133
The black hole is where the force of gravity has successfully joined our known universe back with infinitely dimensional space. \n\nSpace is where our universe was born in a disturbance known as the big bang.  \n\nThe black hole is the grand finale to gravity, gravity's 'goal' creating a porthole to where we came from before the big bang.  \n\nGravity is the connection space has with our universe, too stubborn to let us go and will one day bring us back to become nothing and everything with it once again.\n\nPeace Out
704788
According to Mark McCutcheon and his Final Theory (of everything), gravity is the result of everything in the universe expanding at a universal constant atomic expansion rate (XA) of 0.00000077 per second squared. \n\nFrom his book:\n\n"This numeric result for the universal atomic expansion rate, XA, means that we can now calculate the amount of overall expansion each second of any atom, object, or planet simply by multiplying their radii by XA. Multiplying the radius of the Earth by XA gives 4.9 meters, which is the distance an object "falls due to gravity" on Earth in its first second. So, in essence, we can now calculate the effective gravity of every atom, object, and planet simply by knowing their size. This is radically different from Newton's idea of gravity, which states that a gravitational force emanates from all objects in proportion to their mass."\n\nSo, as all atoms composing the Earth and all the atoms composing yourself are growing at a certain expansion rate, and since the Earth proportionally grows faster than you, in reality you are never falling towards the Earth, on the contrary the Earth is pushing you constantly as it grows. \n\nYou would not feel falling in a free fall (in a vacuum), the Earth would be growing towards you very fast at a speed of 4.9 meters per second. As you also grow in size yourself at the same expansion rate, the distance between you and the Earth shrinks at a speed of 9.8 meters per second squared.\n\nNo strange force emanating from objects, attracting each other. Simply shrinking distances between them due to everything expanding at a constant rate. That is gravity according to Mark McCutcheon.\n\nSee the link below. It is not very clear on that website what the new gravity theory is all about, but if you contact me I will give you all the details. This is the kind of thing that could change the future, and yet, could virtually pass unnoticed in the history of humanity. Check it out... Mark McCutcheon probably does not have all the answers, but I'm sure he is up to something important which could answer many of your questions you have asked so far.
790352
click here:http://en.wikipedia.org/wiki/Rotating_black_hole
9301
ok, well the formula you need is:\n\nFg=Gm1m2/r^2\n\nwhere Fg is the force of gravitation, G is the universal gravitational constant(just a constant, you dont have to worry about it) m1 and m2 are the masses of the 2 objects, and r^2 is the distance between the two objects squared.\n(a) ok, so if r increases by 10 times, since r is squared, the denominator would actually increase by 100 times.  Since the denominator increases by 100 times, and the numerator stays the same, you're basically multiplying it by (1/100) so that means that you have to do the same thing to both sides, so you just multiply Fg by 1/100 so thats 500/100 so the answer is 5 newtons.  This makes sense because the farther objects get from each other, the less each other's gravity will affect them.\n\n(b) ok, now one of the m's, lets say m1 doubles.  The rest stays the same again, and this time its in the numerator, so you're just multipying the whole thing by 2, so the new force would be 1000 newtons.  This makes sense, because something with more mass would experience more gravitational force, for example, a person with more mass experiences a greater gravitational force with the earth, and therefore weighs more.
134909
Alas, another one of our many unanswered questions... It's possible that Newton could have been wrong about just one thing, or perhaps there is something intelligent out there to cause it to happen... Or perhaps it was the force from some exploding star, or black hole...
895994
Here's some basic background covering how mathematical models of space and time have evolved since ancient times, from the Pythagorean Rule to Newtonian mechanics, Special Relativity and General Relativity.\nhttp://www.theory.caltech.edu/people/patricia/st101.html\n\nEinstein and Special Relativity give us a mathematical model for spacetime that reflects the observed behavior of Nature in that nothing can go faster than the speed of light. (At least not anything observed in a laboratory or in outer space as of yet.) \n\nIn Einstein's time they were already learning about differential geometry, but Einstein motivated this field of mathematics even more when he came up with an equation relating the curvature tensor of the spacetime distance function to the distribution of matter and energy in spacetime, encoded in a tensor Tuv called the stress-energy tensor. \n This equation is now called the Einstein equation: \nRuv - (1/2) guv R = (8 Pi G/c4) Tuv \n This equation (or actually, set of equations, for there is an equation for every combination of tensor indices u and v) models a lot of phenomena in the Universe that was impossible to describe with mathematics just using Newton's law of gravity. For example, observations of the bending of light by gravity, gravitational radiation emitted by pulsars, new observations of black holes and the observed expansion of the visible Universe can all be modelled rather successfully using this elegant formalism uncovered by Einstein.
724210
something like what we call a "black hole"
118180
This question is meaningless if you think how we came to use the term.\nScientists observed irregularities in motion of celestial bodies that defied known theories. After reviewing the theories they concluded that the theories are correct and there must be something outthere that caused those irregularities. They calculated the mass and energy of such bodies and they found they gravitational pull is so extreme that to escape their pull (from nearby vicinity) matter must exceed the speed of light.\nThese regions in space were given the name of black holes (since light itself cannot escape the pull, their are invisible). Their existance can be noticed by matter being attracted to blank spots (nothing is visible there, not even starlight). 'Black hole' is a term used to describe an existing celestial body, therefore no 'proof' is needed.
1071649
I'm not sure there is a good answer to this question outside the basic equation of general relativity:\nG_{mu nu}=8pi*T_{mu nu}.\nIn this, T_{mu nu} is a matrix which is called the stress energy tensor. It's components include information about mass, but also include things like momentum stresses. On the other hand G_{mu nu} is a matrix that describes the curvature of spacetime at each point.\n\nIn many ways this equation is like F=ma for Newtonian physics. The Newtonian equation describes how force creates motion (through acceleration), while the relativistic equation describes how mass and stresses create geometry (through curvature).
787952
The force of attraction is given by Newton's law, F = G* m1*m2/r^2, where G = universal gravitational constant, 6.67 * 10^-11 N*m^2/kg^2.  You have the two masses, and the radius of earth is the distance r.  Your weight is the same as the gravitational force.
435368
I think u could visit this website for the general relativity:\n\nhttp://archive.ncsa.uiuc.edu/Cyberia/NumRel/GenRelativity.html
473814
General relativity (as well as most other metric theories of gravity) not only says that black holes can exist, but in fact predicts that they will be formed in nature whenever a sufficient amount of mass gets packed in a given region of space, through a process called gravitational collapse. For example, if you compressed the Sun to a radius of three kilometers, about four millionths of its present size, it would become a black hole. As the mass inside the given region of space increases, its gravity becomes stronger — or, in the language of relativity, the space around it becomes increasingly deformed. Eventually gravity gets so strong that nothing can escape, an event horizon is formed, and matter and energy must inevitably collapse into a singularity.
1044543
General Theory of Relativity:\n\nA mass in space creates an indention much like a bowling ball on a trampoline.  Its this indention that is the cause of gravity.  If a marble were to roll across the trampoline into that indention, it would take a curve path and eventually fall into the bowling ball.  This is what happens when you fall to the Earth: your body is in a sense sliding on the curvature of space-time.