Search results
Results From The WOW.Com Content Network
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.
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).
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).
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.
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.
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.
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.
If all the weights are equal, then the weighted mean is the same as the arithmetic mean. While weighted means generally behave in a similar fashion to arithmetic means, they do have a few counterintuitive properties, as captured for instance in Simpson's paradox.
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.
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.