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2 questions
11
votes
2
answers
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What is the definition of mass?
From what I have seen so far, there seem to be two fundamental criteria for considering something to have mass:
First is that it must have inertia and therefore momentum,
Second is that it interacts ...
1
vote
2
answers
175
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Is inertia and gravity determined by relativistic mass or invariant mass?
As far as I know, mass fundamentally determines inertia and the gravitational force. But since there are two types of mass, which mass determines which? From what I have read so far, and correct me if ...