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  2. Mass - Wikipedia

    en.wikipedia.org/wiki/Mass

    If a first body of mass m A is placed at a distance r (center of mass to center of mass) from a second body of mass m B, each body is subject to an attractive force F g = Gm A m B /r 2, where G = 6.67 × 10 −11 N⋅kg −2 ⋅m 2 is the "universal gravitational constant". This is sometimes referred to as gravitational mass.

  3. Mass versus weight - Wikipedia

    en.wikipedia.org/wiki/Mass_versus_weight

    L. Use of the Terms "Mass" and "Weight" [See Section K. NOTE] When used in this handbook, the term "weight" means "mass". The term "weight" appears when inch-pound units are cited, or when both inch-pound and SI units are included in a requirement. The terms "mass" or "masses" are used when only SI units are cited in a requirement.

  4. Matter - Wikipedia

    en.wikipedia.org/wiki/Matter

    In other words, most of what composes the "mass" of ordinary matter is due to the binding energy of quarks within protons and neutrons. [26] For example, the sum of the mass of the three quarks in a nucleon is approximately 12.5 MeV/c 2, which is low compared to the mass of a nucleon (approximately 938 MeV/c 2).

  5. Gravitational energy - Wikipedia

    en.wikipedia.org/wiki/Gravitational_energy

    For two pairwise interacting point particles, the gravitational potential energy is the work that an outside agent must do in order to to quasi-statically bring the masses together (which is therefore, exactly opposite the work done by the gravitational field on the masses): = = =, where is the displacement vector between the two particles, = | | is the distance between the two particles, and ...

  6. SI base unit - Wikipedia

    en.wikipedia.org/wiki/SI_base_unit

    mass "The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10 −34 when expressed in the unit J s, which is equal to kg m 2 s −1, where the metre and the second are defined in terms of c and ∆ν Cs." [1] The mass of one litre of water at the ...

  7. Sofía Vergara and Lewis Hamilton Get Flirty on a NYC Lunch Date

    www.aol.com/sof-vergara-lewis-hamilton-flirty...

    The F1 driver, meanwhile, was his cool self in a caramel-brown flannel layered under a boxy chocolate-brown workwear-inspired jacket. He went construction-core with his bottoms too: baggy, paint ...

  8. Rodger A. Lawson - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/rodger-a-lawson

    From February 2011 to December 2012, if you bought shares in companies when Rodger A. Lawson joined the board, and sold them when he left, you would have a 29.2 percent return on your investment, compared to a 7.7 percent return from the S&P 500.

  9. Solar mass - Wikipedia

    en.wikipedia.org/wiki/Solar_mass

    The solar mass (M ☉) is a standard unit of mass in astronomy, equal to approximately 2 × 10 30 kg (2 nonillion kilograms in US short scale). It is approximately equal to the mass of the Sun . It is often used to indicate the masses of other stars , as well as stellar clusters , nebulae , galaxies and black holes .

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