Please help me relate two different definitions of the stress-energy tensor
18414
Energy-Momentum Tensor in QFT vs. GR
15731
When is stress-energy tensor defined as variation of action with respect to metric conserved?
96283
Finding the metric tensor from the Einstein field equation?
119794
Action of a 1-form on vector : changing of coordinates - tensor calculus
142247
Difference between electric field $\mathbf E$ and electric displacement field $\mathbf D$
147388
Why do these two ways of understanding constant acceleration give different results?
64247
Noether Theorem and Energy conservation in classical mechanics
107543
What is the difference between a spinor and a vector or a tensor?
40293
Understanding the definition of norm of tensors on a Riemannian manifold
150133
Why is work scalar and the dot product of force and displacement?
74566
Electromagnetic Tensor in Cylindrical Coordinates
78062
Please help understanding the difference between force and kinetic energy for an object hitting a wall?
97765
Force as gradient of scalar potential energy
18144
Does a nonzero Poynting vector mean that there is propagation of energy?
89185
The notation for partial derivatives
90716
Conservation of energy and wavefunctions
95836
Why is the electric field is the negative gradient of potential energy function?