Question

What is mu in physics?

Answer 1

`\mu` can describe a lot of quantities. Sometimes it's used in kinematics for coefficients of friction, or even in particle physics for the reduced mass of a particle.

Answer 2

`Mu` has quite a few uses, it is used:

• As a prefix for measurements to represent (`1*10^-6`)
• Represent the coefficient of friction
• To represent reduced mass in a two-body problem
• To represent mass per unit length in strings and other objects that appear one-dimensional
• To represent permeability of a material, how well it can support the formation of a magnetic field within itself.
• To represent the magnetic moment.
• To represent dynamic viscosity
• To represent electrical mobility of a charged particle
• To represent the muon (`mu`) and antimuon (`bar(mu)`)
• In thermodynamics to represent the chemical potential of a system or component of a system.