query: The mass-energy equivalence is a principle which can not be derived from anything?
positive_passages.docid: 152686
positive_passages.text: How to derive $E=mc^{2}$?
negative_passages.docid: 100959
negative_passages.text: Is conservation of momentum and energy valid for non-inertial frames?
negative_passages.docid: 38384
negative_passages.text: Is the lay explanation of the equivalence principle wrong?
negative_passages.docid: 128479
negative_passages.text: Can velocity be an undefined quantity?
negative_passages.docid: 17121
negative_passages.text: Kinetic energy with respect to different reference frames
negative_passages.docid: 18054
negative_passages.text: Is there a proof from the first principle that the Lagrangian L = T - V?
negative_passages.docid: 62419
negative_passages.text: Einstein equation $E=mc^2$: Does it mean an object without mass does not have energy?
negative_passages.docid: 100630
negative_passages.text: Why doesn't the potential energy of any object equal 0
negative_passages.docid: 37345
negative_passages.text: Why can't massless particle exceed speed of light?
negative_passages.docid: 84770
negative_passages.text: Twin Paradox Without Acceleration
negative_passages.docid: 38673
negative_passages.text: General relativity: For massless particles, is the momentum and velocity 4-vectors equal?
negative_passages.docid: 68831
negative_passages.text: Why mass terms are forbidden?
negative_passages.docid: 146039
negative_passages.text: Is it always possible to define energy of a system?
negative_passages.docid: 47638
negative_passages.text: Mass and Newton's Second Law
negative_passages.docid: 134571
negative_passages.text: Why should a (physical) principle be applicable to different systems in different positions in space and time?
negative_passages.docid: 28057
negative_passages.text: Deriving $p = mv$ from translational symmetry (momentum conservation law)?
negative_passages.docid: 74367
negative_passages.text: Newtonian mechanics: massless particles