mass-energy equation
11Energy — This article is about the scalar physical quantity. For other uses, see Energy (disambiguation). Energetic redirects here. For other uses, see Energetic (disambiguation) …
12mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
13Mass balance — A mass balance (also called a material balance) is an application of conservation of mass to the analysis of physical systems. By accounting for material entering and leaving a system, mass flows can be identified which might have been unknown,… …
14Mass — This article is about the scientific concept. For the substance of which all physical objects consist, see Matter. For other uses, see Mass (disambiguation). Classical mechanics …
15Energy condition — In relativistic classical field theories of gravitation, particularly general relativity, an energy condition is one of various alternative conditions which can be applied to the matter content of the theory, when it is either not possible or… …
16Energy-momentum relation — In special relativity, the energy momentum relation is a relation between the energy, momentum and the mass of a body:: E^2 = m^2 c^4 + p^2 c^2 , ;where c is the speed of light, E ; is total energy, m ; is invariant mass, and p; is momentum.For a …
17Mass attenuation coefficient — The mass attenuation coefficient is a measurement of how strongly a chemical species or substance absorbs or scatters light at a given wavelength, per unit mass. In addition to visible light, mass attenuation coefficients can be defined for other …
18einstein equation — noun Usage: usually capitalized E Etymology: after Albert Einstein : any of several equations in physics: as a. : mass energy equation b. : einstein s photoelectric equation …
19Einstein equation — noun see mass energy equation * * * Physics. any of several equations formulated by Albert Einstein, esp. the mass energy equation, E=mc2. [1920 25] * * * Einstein equation, an equation expressing the relation of mass and energy; E = mc2; mass… …
20Energy balance — has the following meanings in several fields:* In physics, energy balance is a systematic presentation of energy flows and transformations in a system. Theoretical basis for an energy balance is the first law of thermodynamics according to which… …
