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  2. Mass fraction (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Mass_fraction_(chemistry)

    Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight).

  3. Mass versus weight - Wikipedia

    en.wikipedia.org/wiki/Mass_versus_weight

    Mass and weight of a given object on Earth and Mars. Weight varies due to different amount of gravitational acceleration whereas mass stays the same. In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities.

  4. Percentile - Wikipedia

    en.wikipedia.org/wiki/Percentile

    Percentiles are expressed in the same unit of measurement as the input scores, not in percent; for example, if the scores refer to human weight, the corresponding percentiles will be expressed in kilograms or pounds.

  5. Classification of obesity - Wikipedia

    en.wikipedia.org/wiki/Classification_of_obesity

    Any BMI ≥ 35 is severe obesity. A BMI of ≥ 40 is morbid obesity. A BMI of ≥ 50 is extreme obesity. As Asian populations develop negative health consequences at a lower BMI than Western populations, some nations have redefined obesity.

  6. Best equal-weight index funds - AOL

    www.aol.com/finance/best-equal-weight-index...

    Equal-weight funds hold an equal proportion of each stock that makes up an index, which translates into a roughly 0.2 percent holding for each company in the S&P 500, for example.

  7. Mass concentration (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Mass_concentration_(chemistry)

    Mass concentration depends on the variation of the volume of the solution due mainly to thermal expansion. On small intervals of temperature the dependence is : where ρi(T0) is the mass concentration at a reference temperature, α is the thermal expansion coefficient of the mixture.

  8. Thrust-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Thrust-to-weight_ratio

    The thrust-to-weight ratio is calculated by dividing the thrust (in SI units – in newtons) by the weight (in newtons) of the engine or vehicle. The weight (N) is calculated by multiplying the mass in kilograms (kg) by the acceleration due to gravity (m/s^2).

  9. Alcohol by volume - Wikipedia

    en.wikipedia.org/wiki/Alcohol_by_volume

    Alcohol by weight. In the United States, Arkansas, Kansas, Mississippi, South Carolina, and Tennessee regulate and tax alcoholic beverages according to alcohol by weight (ABW), expressed as a percentage of total mass.

  10. Standard atomic weight - Wikipedia

    en.wikipedia.org/wiki/Standard_atomic_weight

    The standard atomic weight of a chemical element (symbol A r °(E) for element "E") is the weighted arithmetic mean of the relative isotopic masses of all isotopes of that element weighted by each isotope's abundance on Earth.

  11. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    One part per hundred thousand, per cent mille (pcm) or milli-percent denotes one part per 100,000 (10 5) parts, and a value of 10 −5. It is commonly used in epidemiology for mortality, crime and disease prevalence rates, and nuclear reactor engineering as a unit of reactivity.