what is atmospheric pressure
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Atmospheric pressure is the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals.
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Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 1013.25 mbar, equivalent to 760 mmHg, 29.9212 inches Hg, or 14.696 psi
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