Free energies must decrease over time?
106538
Why are thermodynamic potentials minimised?
154508
The energy method for $u_{tt}-du_t-u_{xx}=0, (0,1)\times(0,T) $
19783
Why does a system try to minimize potential energy?
141018
Why does resting potential not become continually more negative?
115936
Is there a theorem that says that QFT reduces to QM in a suitable limit? A theorem similar to Ehrenfest's theorem?
21186
Why is the second order perturbative correction to the ground state energy always down?
58960
Time dependent Schrödinger equation with time independent potential and separation of variables
19163
Why does the amount of energy transferred depend on distance rather than time?
45625
Is energy content of a system different depending on the observer?
138350
Correct formula for Mass Defect / Binding Energy?
80627
Evolution operator for time-dependent Hamiltonian
22934
Validity of work-energy theorem in presence of non-conservative forces?
30498
Energy conservation and interference
135471
In wave motion of a string both kinetic energy and potential energy are minimum at $y=y_\text{max}$ then why does the string come down again?
70734
Entropy and the principle of least action
122561
Is the energy always discrete?
37360
How does temperature relate to the kinetic energy of molecules?