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Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars , [1] 760 mm Hg , 29.9212 inches Hg , or 14.696 psi ...
The standard atmosphere (symbol: atm) is a unit of pressure defined as 101 325 Pa. It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth 's average atmospheric pressure at sea level. [1] History.
Standard atmosphere, unit of pressure, equal to the mean atmospheric pressure at sea level. It corresponds to the pressure exerted by a vertical column of mercury (as in a barometer) 760 mm (29.9213 inches) high. One standard atmosphere, which is also referred to as one atmosphere, is equivalent to.
- The Editors of Encyclopaedia Britannica
Atmospheric pressure is the force per unit area exerted by a body of air above a specified area (called an atmospheric column). It is expressed in several different systems of units, including millimeters (or inches) of mercury, pounds per square inch (psi), millibars (mb), or standard atmospheres.
- The Editors of Encyclopaedia Britannica
The U.S. Standard Atmosphere is a set of models that define values for atmospheric temperature, density, pressure and other properties over a wide range of altitudes.
13 de may. de 2021 · Earth Atmosphere Model - Metric Units. The Earth's atmosphere is an extremely thin sheet of air extending from the surface of the Earth to the edge of space. If the Earth were the size of a basketball, a tightly held pillowcase would represent the thickness of the atmosphere. Gravity holds the atmosphere to the Earth's surface.
20 de nov. de 2023 · Earth Atmosphere Equation – Metric. On this page: Atmosphere of Earth. Variations in Air Properties. Aerodynamic Force. Model. Upper Stratosphere Model. Atmosphere of Earth. The Earth’s atmosphere is an extremely thin sheet of air extending from the surface of the Earth to the edge of space.
