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  2. Vacuum permeability - Wikipedia

    en.wikipedia.org/wiki/Vacuum_permeability

    The change of name had been made because μ 0 was a defined value, and was not the result of experimental measurement (see below). In the new SI system, the permeability of vacuum no longer has a defined value, but is a measured quantity, with an uncertainty related to that of the (measured) dimensionless fine structure constant.

  3. Automobile drag coefficient - Wikipedia

    en.wikipedia.org/wiki/Automobile_drag_coefficient

    The two main factors that impact drag are the frontal area of the vehicle and the drag coefficient. The drag coefficient is a unit-less value that denotes how much an object resists movement through a fluid such as water or air. A potential complication of altering a vehicle's aerodynamics is that it may cause the vehicle to get too much lift.

  4. Permeability (electromagnetism) - Wikipedia

    en.wikipedia.org/wiki/Permeability...

    Values shown above are approximate and valid only at the magnetic fields shown. They are given for a zero frequency; in practice, the permeability is generally a function of the frequency. When the frequency is considered, the permeability can be complex , corresponding to the in-phase and out of phase response.

  5. What is the actual cash value of my car? - AOL

    www.aol.com/finance/actual-cash-value-car...

    The actual cash value (ACV) of your vehicle can make or break your insurance claim. ... but most calculate current market value minus depreciation, often using third-party data sources to inform ...

  6. How To Find the True Value of Your Car - AOL

    www.aol.com/true-value-car-number-means...

    Calculating the value of a classic car can be tricky because the actual cash value doesn’t reflect what it’s worth in the market. Classic car buyers look at the make and model, condition, and ...

  7. Impedance of free space - Wikipedia

    en.wikipedia.org/wiki/Impedance_of_free_space

    Its presently accepted value is [1] Z 0 = 376.730 313 412 (59) Ω, where Ω is the ohm, the SI unit of electrical resistance. The impedance of free space (that is, the wave impedance of a plane wave in free space) is equal to the product of the vacuum permeability μ 0 and the speed of light in vacuum c 0.

  8. Vehicle-specific power - Wikipedia

    en.wikipedia.org/wiki/Vehicle-specific_power

    The concept of vehicle-specific power (VSP) is a formalism used in the evaluation of vehicle emissions. The idea was first developed by J. L. Jiménez ( Jiménez 1998 ) at the Massachusetts Institute of Technology .

  9. Electromagnetic wave equation - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_wave_equation

    The electromagnetic wave equation is a second-order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum.It is a three-dimensional form of the wave equation.