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A branch of physics that studies atoms as isolated systems of electrons and an atomic nucleus. Compare nuclear physics. atomic structure atomic weight (A) The sum total of protons (or electrons) and neutrons within an atom. audio frequency A periodic vibration whose frequency is in the band audible to the average human, the human hearing range.
Symbol Name Meaning SI unit of measure nabla dot : the divergence operator often pronounced "del dot" per meter (m −1) : nabla cross : the curl operator often pronounced "del cross"
For the first portion of the list, see List of words having different meanings in American and British English (A–L). Asterisked (*) meanings, though found chiefly in the specified region, also have some currency in the other dialect; other definitions may be recognised by the other as Briticisms or Americanisms respectively.
The final column lists some special properties that some of the quantities have, such as their scaling behavior (i.e. whether the quantity is intensive or extensive), their transformation properties (i.e. whether the quantity is a scalar, vector, matrix or tensor), and whether the quantity is conserved.
The constants listed here are known values of physical constants expressed in SI units; that is, physical quantities that are generally believed to be universal in nature and thus are independent of the unit system in which they are measured.
Progress of particle physics, nuclear physics and atomic physics has resulted in discoveries of new elementary particles and atoms. Their names – quark , gluon , lepton , graviton , neutrino , Higgs boson , mendelevium , etc. – are traditionally given by those people who first discovered them and often include surnames of classical scientists.
3. Truffle Oil – Martha Stewart. Truffle oil is your ingredient to make food instantly classy—or, more accurately, expensive. However, its rather pungent flavor isn’t for everyone, and it ...
This is a categorized list of physics mnemonics. Mechanics. Work: formula "Lots of Work makes me Mad!": Work = Mad: M=Mass a=acceleration d=distance [1] ...