Reports a student-computer dialog for beginning or intermediate physics classes. This dialog enables the student to take some initiative in showing that energy conservation in one dimension is a consequence of the laws of motion. (DS)

Shows that the entropy change during the temperature equilibration of an isolated collection of systems which may exchange heat (but not work) energy is positive when the constant-volume heat capacity of each system is a non-negative function of the temperature. (MLH)

Discusses quantitative, purely geometrical features of field lines; equations are derived for field lines and radii of curvature of field lines for several idealized cases. (MLH)

Investigates a sequence of inelastic collisions resulting among three spheres, whose centers are on a line, when at the outset the leftmost sphere is propelled to the right and the other two spheres are at rest. Expressions are obtained for velocity, time, and distance variables. (MLH)

Supports the contention that sliding friction explains the inversion of a tippe top when it is spun upon a flat surface. Provides a rigorous analysis of the top's mechanics, together with computer-generated solutions of its equations of motion. (MLH)

Presents a mathematical treatment of optical propagation in crystals as an eigenvalue problem involving a real symmetrical dyadic. (MLH)

Shows that local equilibrium and energy considerations in an elastic dielectric crystal lead to a simple derivation of the Maxwell stress tensor in anisotropic dielectric solids. The resulting equilibrium stress-strain relations are applied to determine the deformations of a charged parallel plate capacitor. (MLH)

Advances new explanations for false observations made during 1903-1906 concerning a spurious radiation called N rays. (MLH)

Presents a classical approximation of the equipartition theorem of thermodynamics. A canonical distribution is assumed and the calculations of Reif are followed to solve for the average potential energy per particle. (CP)

Discusses the quantization of angular momentum components, Heisenberg-type inequalities for their spectral dispersions, and the quantization of the angular momentum modulus, without using operators or commutation relations. (MLH)

Discusses the Stark effect of the plane rotator using a simple analysis of symmetry features and a careful application of degenerate perturbation theory. (MLH)

Discusses the construction of wave packets by superimposing bound-state eigenfunctions. Illustrates the infinite square well and the infinite square well with a delta-function barrier. (MLH)