Shows that the basic properties of spherical harmonics follow in a simple and elegant way from the commutation relations for angular momentum operators and the commutation relations between these operators and arbitrary vector operators. (Author/HM)

Shows using the special theory of relativity, how a body acted upon by a force with positive components could have one or two negative acceleration components. (GA)

Obtains the orbits with reference to the center of mass of two bodies under mutual universe square law interaction by use of the eccentricity vector which is equivalent to the Lenz vector within a numerical factor. (Author/SL)

Provides a detailed discussion of a Lagrange formalism in classical momentum space. (SL)

Demonstrates that investigating coriolis effects in a fixed frame leads to a clearer understanding of the physical nature of the phenomenon. (SL)

In this paper a formalism is developed that enables one to write by inspection the matrix which represents the transformation between two coordinate systems, one of which is rotated about an arbitrary axis. (Author/CP)

The author advocates changing the traditional approach to mechanics from emphasis on the formulation of Newton's Laws to discussion of the foundations of mechanics and Mach's formulation. (SD)

Provides an analytical solution of a model representing the collision of an atom with a harmonic oscillator, interacting via a repulsive square well potential. Presents results for various energies and strengths of inelastic scattering. (Author/CP)

Provides a more exact solution to the motion of a pendulum through use of elliptic integrals and the perturbation theory of Kryloff and Bogoliuboff. (CP)

Explains the mechanism and basic physics that govern the growth of a single raindrop by condensation and droplet capture, and such properties as its falling speed, shape, and stability. (Author/GA)

Describes how Newton's three laws of dynamics are taught in high school in the Soviet Union. Rejects introducing Newton's second law as an equation defining mass as a proportionality constant. Shows how the concept of mass can be introduced independently of Newton's Law. (GA)

A coupled-oscillator system is given which is readily set up, using only household materials. The normal-mode analysis of this system is worked out, and an experiment or demonstration is recommended in which one verifies the theory by measuring two times and four lengths. (Author/GA)

A Hamiltonian for the time-dependent damped and forced harmonic oscillator is derived. A simple time-dependent linear canonical transformation transforms the Hamiltonian to one whose solution is readily obtained. The wave function for the corresponding quantum mechanical problem is given. (Author/GA)

A discussion of levers, moments of inertia, fulcrums and forces involved in the action of boat rowing is presented. (CP)