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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 Download as PDF; Printable version; ... Dimensionless quantity * List of dimensionless quantities; D. Strain (mechanics) N. Number of ...
The Roblox Studio interface as of August 2024. Roblox Studio is the platforms game engine [26] and game development software. [27] [28] The engine and all games made on Roblox predominantly uses Luau, [29] a dialect of the Lua 5.1 programming language. [30] Since November 2021, the programming language has been open sourced under the MIT License.
A quantity of dimension one is historically known as a dimensionless quantity (a term that is still commonly used); all its dimensional exponents are zero and its dimension symbol is . Such a quantity can be regarded as a derived quantity in the form of the ratio of two quantities of the same dimension.
However, fugacity has the dimension of pressure, so it must be divided by a standard pressure, usually 1 bar, in order to produce a dimensionless quantity, f / p o . An equilibrium constant is expressed in terms of the dimensionless quantity. For example, for the equilibrium 2NO 2 ⇌ N 2 O 4,
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