The significance of the pressure term within the momentum-energy tensor
38613
Intuitive understanding of the elements in the stress-energy tensor
41407
How to derive or justify the expressions of momentum operator and energy operator?
135071
Energy momentum tensor from Noether's theorem
3603
Lagrangian and Hamiltonian EOM with dissipative force
110999
Neutron degeneracy pressure and the Schwarzschild radius
7477
Why is the momentum of a particle $\gamma mv$?
80573
Nature of the quantum degeneracy pressure
29340
Why does no physical energy-momentum tensor exist for the gravitational field?
38950
On the uniqueness of the Riemann-Christoffel tensor
110980
Why is momentum conserved in inelastic collisions? How is it related to momentum-impulse theory?
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
87328
Expectation of momentum in the bound state
29329
Does a four-divergence extra term in a Lagrangian density matter to the field equations?
33126
Why does the Boltzmann factor $e^{-E/kT}$ seem to imply that lower energies are more likely?
56266
Potential energy and the work energy theorem
25164
Velocity-Dependent Potential and Helmholtz Identities
68634
Learn about tensors for physics