density
the frequency of “something” in a given UNIT AREA (ex. ppl per unit)
Density is a physical property of materials that measures how much mass is contained within a given volume. It is defined as the ratio of an object’s mass to its volume, and is usually measured in grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3).
The formula for calculating density is:
Density = Mass / Volume
where Mass is the measured amount of matter that an object contains, and Volume is the amount of space that object occupies.
Density is affected by a variety of factors, including temperature, pressure, and the chemical composition of a material. When objects are heated, their particles move faster and take up more space, causing their density to decrease. Conversely, when objects are cooled, their particles slow down and occupy less space, causing their density to increase.
Density is an important property in many fields of science, including physics, chemistry, and geology. It is used to determine the purity of materials, to identify substances, and to understand the behavior of fluids and gases.
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