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This is a list of well-known dimensionless quantities illustrating their variety of forms and applications. The tables also include pure numbers , dimensionless ratios, or dimensionless physical constants ; these topics are discussed in the article.
Dimensionless quantities, or quantities of dimension one, [1] are quantities implicitly defined in a manner that prevents their aggregation into units of measurement. [ 2 ] [ 3 ] Typically expressed as ratios that align with another system, these quantities do not necessitate explicitly defined units .
Definition of the Lorentz factor γ. The Lorentz factor or Lorentz term (also known as the gamma factor [1]) is a dimensionless quantity expressing how much the measurements of time, length, and other physical properties change for an object while it moves.
Download QR code; Print/export ... Pages in category "Dimensionless quantities" ... Dimensionless quantity * List of dimensionless quantities; D. Strain (mechanics) N.
Dimensionless numbers of thermodynamics (22 P) Pages in category "Dimensionless numbers of physics" The following 30 pages are in this category, out of 30 total.
Froude number – Dimensionless number; ratio of a fluid's flow inertia to the external field; Kármán vortex street – Repeating pattern of swirling vortices; Mach number – Dimensionless quantity in fluid dynamics; Reynolds number – Ratio of inertial to viscous forces acting on a liquid
A United States Navy Aviation boatswain's mate tests the specific gravity of JP-5 fuel. Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material.
Pages in category "Dimensionless numbers" The following 57 pages are in this category, out of 57 total. ... Code of Conduct; Developers; Statistics; Cookie statement;