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No. It's never correct to say that anything is "only" a theory or "just" a theory or
"merely" a theory or "nothing but" a theory or an "unproven" theory.
A theory can never be proven, but it can be dis-proven in two seconds. If a theory
has been around for three hundred years and it hasn't been dis-proven yet, then
that's a pretty good indication that you can trust the statement it makes.
What else can I help you with?
What alternative will be used- newton discovered or invented the theory of gravitation?
It is more correct to say that Newton invented the theory of gravitation, than to say that he discovered the theory. Gravity exists in nature, but the theory of gravity does not exist in nature, it is a human invention. You can only discover something that already exists, and the theory of gravity didn't exist until Newton invented it.
How is gravity related to the big bang theory?
Largely by being not related. The Big Bang theory doesn't really say anything at all about gravity.It's kind of distantly related through the "Theory of Everything", but the problem with this is that there is no Theory of Everything yet (actually, the situation is worse; there are multiple Theories of Everything, and we have no idea which is correct, or indeed if any of them are).
When the only force affecting an object is gravity that object is?
When the only force on an object is the force of gravity,we say that the object is in "free fall".
Why is m-theory valid when it lacks a formal theory and is not predictable and lacks predictive power?
Depends what you mean by "valid." All the statement you make about M-Theory, and string theory in general, are absolutely correct. So how do we react to them? Not even the most vociferous supporters of M-Theory would say it is the only game in town. However, even opponents of the string theory agree that the approach does something no other approach has been able to do: unify gravity with quantum mechanics. It may turn out that, 500 years from, people will be amazed that string theory was either ever (1) doubted or (2) considered as a valid science. Heliocentrism experienced the first path, phrenology the second. Only time will tell.
Is it more correct to say that a Black Hole has infinite mass or infinite gravity?
A black hole has infinite density.
Is it correct to say i will be out of country?
You're close ! It is correct to say" I will be out of the country" ! (The only word you had missing was "the" ! )
Is it correct English to say you also only get?
Yes... if you say what s/he gets.
How will string theory improve your life?
At this point it is impossible to say if at all. We have no idea which variant of String Theory might be correct (if any) and no way to experimentally test them (yet).
Who has applied is correct to say?
There is only one who can say correct,GOD
When the only force affecting an objects is gravity that object is an?
When the only force on an object is the force of gravity,we say that the object is in "free fall".
Is it grammatically correct to say Who all is going?
Only in the south.
Is it correct to say the only family she has is she and her brother?
While grammatically correct, it is better to say the only family she has is her brother. I think even better: Her brother is the only family she has. It is redundant to refer to her as a member of her own family.
