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  2. Contracting Officer - Wikipedia

    en.wikipedia.org/wiki/Contracting_Officer

    The responsibilities of a Contracting Officer are detailed in the FAR (48 CFR) Part 1.602-2: "Contracting officers are responsible for ensuring performance of all necessary actions for effective contracting, ensuring compliance with the terms of the contract, and safeguarding the interests of the United States in its contractual relationships."

  3. Federal Acquisition Regulation - Wikipedia

    en.wikipedia.org/wiki/Federal_Acquisition_Regulation

    The single most heavily regulated aspect of acquisition is contract pricing, [according to whom?] which is addressed throughout the FAR, but especially in Subpart 15.4, Parts 30 and 31, and Subparts 42.7, 42.8, and 42.17. A large part of the FAR, Subchapter D, describes various socio-economic programs, such as the various small business ...

  4. Elementary charge - Wikipedia

    en.wikipedia.org/wiki/Elementary_charge

    [2] [a] In the SI system of units , the value of the elementary charge is exactly defined as e {\displaystyle e} = 1.602 176 634 × 10 −19 coulombs , or 160.2176634 zepto coulombs (zC). [ 3 ] Since the 2019 revision of the SI , the seven SI base units are defined in terms of seven fundamental physical constants, of which the elementary charge ...

  5. Coulomb - Wikipedia

    en.wikipedia.org/wiki/Coulomb

    The SI defines the coulomb as "the quantity of electricity carried in 1 second by a current of 1 ampere". Then the value of the elementary charge e is defined to be 1.602 176 634 × 10 −19 C. [3]

  6. Orders of magnitude (charge) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(charge)

    Static electricity from rubbing materials together [7] 10 −3: milli-(mC) 1 × 10 −3 C: Charge in typical power supply capacitors [citation needed] 2.1 × 10 −3 C: Charge in CH85-2100-105 high voltage capacitor for microwaves [8] 10 0: C: 1 × 10 0 C: Two like charges, each of 1 C, placed one meter apart, would experience a repulsive force ...

  7. Caesium standard - Wikipedia

    en.wikipedia.org/wiki/Caesium_standard

    1 steradian, sr, = 1 m 2 /m 2 = Δλ Cs 2 / Δλ Cs 2 = 1 (dimensionless unit of solid angle) Between 1960 and 1983, the metre had been defined by the wavelength of a different transition frequency associated with the krypton-86 atom. This had a much higher frequency and shorter wavelength than the caesium standard, falling inside the visible ...

  8. Avogadro constant - Wikipedia

    en.wikipedia.org/wiki/Avogadro_constant

    The Avogadro constant, commonly denoted N A [1] or L, [2] is an SI defining constant with an exact value of 6.022 140 76 × 10 23 mol −1 (reciprocal moles). [3] [4] It is this defined number of constituent particles (usually molecules, atoms, ions, or ion pairs—in general, entities) per mole and used as a normalization factor in relating the amount of substance, n(X), in a sample of a ...

  9. Electronvolt - Wikipedia

    en.wikipedia.org/wiki/Electronvolt

    An electronvolt is the amount of energy gained or lost by a single electron when it moves through an electric potential difference of one volt.Hence, it has a value of one volt, which is 1 J/C, multiplied by the elementary charge e = 1.602 176 634 × 10 −19 C. [2]