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Another explanation of the OZI rule comes from the large-N c limit, in which the number of colors N c is assumed to be infinite. The OZI suppressed processes have a higher ratio of vertices (which contribute factors of 1 ⁄ N c ) to independent fermion loops (which contribute factors of N c ) when compared to the non-suppressed processes, and ...
In special relativity, the rule that Wilczek called "Newton's Zeroth Law" breaks down: the mass of a composite object is not merely the sum of the masses of the individual pieces. [85]: 33 Newton's first law, inertial motion, remains true. A form of Newton's second law, that force is the rate of change of momentum, also holds, as does the ...
299,792,458 meters per second (m/s) speed of sound: meter per second (m/s) specific heat capacity: joule per kilogram per kelvin (J⋅kg −1 ⋅K −1) viscous damping coefficient kilogram per second (kg/s) electric displacement field also called the electric flux density coulomb per square meter (C/m 2) density
The laws of physics are invariant under transformations between inertial frames. In other words, the laws of physics will be the same whether you are testing them in a frame 'at rest', or a frame moving with a constant velocity relative to the 'rest' frame.
Kirchhoff's circuit laws. Also called Kirchhoff's rules or simply Kirchhoff's laws. Two approximate equalities that deal with the current and voltage in electrical circuits. See Kirchhoff's laws for other meanings of the term. Kirchhoff's equations In fluid dynamics, a set of equations which describe the motion of a rigid body in an ideal fluid
In physics, there are equations in every field to relate physical quantities to each other and perform calculations. Entire handbooks of equations can only summarize most of the full subject, else are highly specialized within a certain field. Physics is derived of formulae only.
(common name/s) (Common) symbol/s Defining equation SI units Dimension Number of atoms N = Number of atoms remaining at time t. N 0 = Initial number of atoms at time t = 0 N D = Number of atoms decayed at time t = + dimensionless dimensionless Decay rate, activity of a radioisotope: A =
In physics, the principle of relativity is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference.. For example, in the framework of special relativity, the Maxwell equations have the same form in all inertial frames of reference.