If it affects light, wouldn't it be faster and stronger than light?
2007-03-15
07:24:28
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9 answers
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asked by
onelittledoc
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Science & Mathematics
➔ Physics
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Gravity doesn't have a 'velocity' associated with it. It is an acceleration, not a force, and at the surface of planet Earth it is an acceleration of 9.8 m/s²."
To what end? What is the top acceleration speed possable?
2007-03-15
07:48:23 ·
update #1
Most of the other answers start from a false hypothesis------that the acceleration due to gravity at the earth's surface at sea level (theoretical sea level, not actual) at 0 degrees C. and at a pressure of 1 atmosphere is somehow a universal constant. You are asking about gravity in the abstract, and gravity has no "speed", it's a fundamental property of massed matter and exerts its influence instantaneously. There is no time lag involved. This means that gravity is a different kind of critter entirely from the other three fundamental forces--electromagnetic, strong nuclear, and weak nuclear, and explains why all attempts so far to produce a "Unified Field Theory" have fallen short--all the other three operate by the exchange of particles, actually "wavicles". The theoretical exchange wavicle for gravity is the graviton, but again, for it to do what gravity does, it would have to travel at an infinite speed, and therein lies the paradox. It would have to violate the Laws of Quantum Mechanics and of Relativity if it exists, and if it doesn't exist, there is no way for gravity to exist except through magic, so the choice is between a physical impossibility on one hand and a state of total anarchy on the other. Yet gravity indubitably does exist. The question (which I feel a coherent answer to will win a Nobel Prize) is "How?"
2007-03-15 07:49:55
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answer #1
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answered by JIMBO 4
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As far as I know Gravity technically has no speed, yes the earth spins in order to create it, but it is more of a pull that affects most things in the universe. So say when some thing gets too close it will be pulled in, under those circumstances the stronger the gravity(or larger the planet) the faster the object will be pulled in. In the case of light I didn't think that gravity really affected it that much, but it affects other things so maybe.
2007-03-15 14:38:32
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answer #2
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answered by Joe M 2
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Gravity doesn't have a 'velocity' associated with it. It is an acceleration, not a force, and at the surface of planet Earth it is an acceleration of 9.8 m/s².
Also, gravity does not 'bend' light. It causes local space-time to become 'curved' with respect to 'linear' spacetime. However, this apparent 'curvature' is only seen from our perspective (as 'flatlanders') If you were a photon, yoiu would see yourself as traveling in a straight line (the shortest distance) between points A and B.
HTH âº
Doug
2007-03-15 14:35:38
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answer #3
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answered by doug_donaghue 7
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The answer to this is found in the physics trilogy: E = mc2, m= E/c2, and c2 = E/m. These three thoughts describe our physical existence. The last is that of a field of gravity. It is able to be increased and decreased according to the values of energy and mass.
The value of the graviton itself is always that of "c", or the speed of light. The graviton has its intensity increase and decrease by the number of lines in a given area and not by a frequency or energy increase of individual gravitons. The further a person moves away from an intense field of gravity, the less the number of waves in a particular location. The closer they move toward the center of a mass, the greater becomes the attractive value of "g".
2007-03-15 14:41:44
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answer #4
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answered by Anonymous
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That turns out to be a question of considerable technical interest. General relativity indicates that gravitation should propagate at the speed of light. (The speed of propagation has nothing to do with its strength in the sense of your question.) Now consider the earth orbiting the sun; does the earth fall toward where the sun is right now, or toward where it was eight minutes ago? It appears that it falls toward where the sun is right now -- which does make one wonder about the mechanics of gravitational theory.
2007-03-15 14:37:58
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answer #5
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answered by Anonymous
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Gravity's pull is non existing unless there is substance or an object for it to have an effect on.
I guess it would then depend on the weight of the object,and it's distance from the earth.
2007-03-15 14:32:43
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answer #6
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answered by Charles H 4
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On earth, the gravity's "acceleration" is 9.8M/Ssquared.
2007-03-15 14:28:32
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answer #7
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answered by joe s 6
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c'mon this is standard, 9.81m/s squared, and it doesn't affect light
2007-03-15 14:33:30
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answer #8
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answered by Anonymous
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9.81m/s/s
2007-03-15 14:27:53
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answer #9
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answered by Poor one 6
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