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Can anybody properly define what a gravitational field means?G. force can b felt everywhere,so how define a field?

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The gravitational field is the space that an object's gravitational force extends. All objects that have mass generate a gravitational force. The greater the mass the greater the strength and size of that gravitational field. Since the Earth is so massive, it overshadows all other gravitational forces in the immediate area. But when we move away from the earth it's gravitational influence is weakened. The formula is:

F=G((m1*m2)/r2))
where:
F is the force between the masses,
G is the gravitational constant,
m1 is the first mass,
m2 is the second mass, and
r is the distance between the centers of the masses.

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thanks,i know that... but according 2 ur formula there is no limit to r and thus an object's gravitational force may be felt very far away.... so how d'u define a field?that's my actual Q.
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Funny, I thought I defined the field in the first sentence. But I have to apologize for my typo; I meant r^2 as the numerator. And remember when you are dividing, the higher the value of r the lower the value of F until F=0. Thus r is in fact limited.
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but then it would mean that an objects gravitational field extends almost over the whole of the universe. F will become small but never zero.
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I don't understand how you can possibly draw that conclusion. Please explain your reasoning. I really want to hear. Perhaps then we can figure out where you are having difficulty with this.
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well, are u in the gravitational field of Pluto? explain why not .
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If you are convinced that Pluto has no gravitational influence within it's very own solar system, how can you conclude that it's gravitational field extends infinitely?
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i didn't say pluto's gravitational influence doesnt extend ... i wanted 2 know ur explanation.
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My explanation of what? Besides , I am still waiting for you to answer my question.
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Well u'll understand my problem if u explain if we are in pluto's gravitatiomal field or not.
:)
really,
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I think your problem stems from a lack of understanding of linear equations. Otherwise it should be obvious how a whole number that is greater than 0 divided by the square of another whole number can never reach infinity no matter how large the numerator is. But if you will explain how you figure otherwise, take me through your process maybe we can figure out where you are going wrong.
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ok
first : F proportional to 1/r^2.
as r increases F decreases .....
now lets consider the grav. force acting between u and a star.
say r is the distance of a distant star in the sky from your body.
then F=G m1 m2 / r^2 which is a finite positive quantity.
It will be very small of course, but its STILL CALCULABLE.
There always exists a small force of gravitation between the star n ur body.Thus i can say that the star's gravitational field extends upto your body, whatever finite distance u may be from the star.So the gravitational field of a star will not have any fixed limit.
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Yeah your right. I had been working with Charles law and how one can use it to calculate absolute zero and was thinking along those lines of an eventual degradation to 0, and didn't stop to really think the math through. Unlike temperature, F will not degrade to zero, provided that G, M1 and M2 are all greater than zero. Hey even Sir Stephen Hawking made mistakes. So I'm in good company.
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lol
ok so what about wrking with charles law? how old are u ? nothing i'd just really love to know.
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I had been working on that and I guess i was still fixating on values that diminish to zero. As for my age I prefer to not give out personal information online. How old do you think I am?
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ok
based on what u said, ur last Q., not giving personal info onlin & ur dominating tone of speech my best guess would be u're more than 30 yrs old.i can never tell 4 sure though.
Also why would u refrain from giving ur age here?nobody knows ur real name,only nblacksmith which means nothing 2 anybody.
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Really dominating? I don't know what to say to that. I don't feel dominating. Neither do I wish to dominate or be dominated. If it seems otherwise then I apologize.
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ok..i didn't say i was dominated or u were trying 2 dominate me.. anyway am i wrong about ur age?
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