Is mass-energy conversion contradicting energy conservation?
94778
Why can't I do this to get infinite energy?
79068
Is energy conserved in general relativity? Does $\nabla_aT^{ab}_{\rm matter}=0$ represent the conservation of energy and momentum?
53170
Energy conservation in General Relativity
17121
Kinetic energy with respect to different reference frames
121639
Is momentum conserved in this situation?
155640
Why is the laboratory frame energy always greater than the center of mass frame energy?
56266
Potential energy and the work energy theorem
15502
Does non-mass-energy generate a gravitational field?
53622
Does momentum change when Kinetic energy changes?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
90716
Conservation of energy and wavefunctions
42186
When is the Hamiltonian of a system not equal to its total energy?
24150
Newton's third law does not apply to the kinetic energy formula?
6761
Mass converted to energy in a common fire?
107971
Hubble's law and conservation of energy
45625
Is energy content of a system different depending on the observer?
14354
Mass defect- From where mass is being lost?