This operator’s commutator with an operator A times i over h-bar equals the time derivative of A’s expectation value minus the expectation value (10[1])of A’s time derivative in the Heisenberg picture. This quantity’s Poisson bracket with a (10[1])constant of motion equals zero. If this quantity is time-independent, then the time evolution operator equals (10[1])this quantity’s exponential. This quantity’s operator on the wavefunction is i h-bar times the wavefunction’s time derivative (10[1])in the time-dependent Schrodinger equation, while its time-independent (10[1])form sets this quantity’s operator on psi equal to “E psi.” (10[1])The Legendre transform of the Lagrangian equals this quantity, which is minimized at the ground state. For 10 points, what quantity is the sum of the “potential” and “kinetic” forms (-5[1])of a quantity measured in joules? ■END■ (10[2]0[1])