New posts in Approximations

Approximating an expression for a potential

Why is a particle non-relativistic when its kinetic energy is small compared to its rest energy?

The reasoning behind doing series expansions and approximating functions in physics

Slowly-varying envelope approximation: what does it imply?

Composite particles Dirac spinor approximation

Why don't the Navier-Stokes equations simplified for hydrodynamics contain gravitational acceleration?

Elliptical Trajectory, or Parabolic?

Why is the Newtonian expression for kinetic energy called the "first order" approximation of the relativistic expression?

Why does a simple pendulum or a spring-mass system show simple harmonic motion only for small amplitudes?

Far away from a charged conductor, the field is like a point charge. Where's the point located?