atmospheric pressure - wikipedia

Atmospheric pressure - Wikipedia

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2019-5-15 · Atmospheric pressure, sometimes also called barometric pressure (after the sensor), is the pressure within the atmosphere of Earth (or that of another planet). The standard atmosphere (symbol: atm) is a unit of pressure defined as 1013.25 mbar (101325 Pa), equivalent to 760 mm Hg (), 29.9212 inches Hg, or 14.696 psi. The atm unit is roughly equivalent to the mean sea-level atmospheric pressure

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atmosphere (unit) - wikipedia

Atmosphere (unit) - Wikipedia

|Unit of: Pressure

atmospheric pressure | Definition & Variation | …

Atmospheric pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column of mercury that exactly balances the weight of the column of atmosphere

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atmospheric pressure: definition & facts - live science

Atmospheric Pressure: Definition & Facts - Live Science

: Joe Rao

Atmospheric pressure - Simple English Wikipedia, the …

2019-4-28 · Atmospheric pressure is a force in an area pushed against a surface by the weight of the atmosphere of Earth, a layer of air. The air is not distributed evenly around the globe. It moves, and at different times, the layer of air is thicker in some places than in others. Where the layer of air is thicker, there is more air.

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chapter 2. atmospheric pressure - harvard university

CHAPTER 2. ATMOSPHERIC PRESSURE - Harvard University

2014-6-21 · 12 CHAPTER 2. ATMOSPHERIC PRESSURE 2.1 MEASURING ATMOSPHERIC PRESSURE The atmospheric pressure is the weight exerted by the overhead atmosphere on a unit area of surface. It can be measured with a mercury barometer, consisting of a long glass tube full of mercury

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atmospheric pressure - definition of atmospheric …

Atmospheric pressure - definition of atmospheric …

atmospheric pressure n. Pressure caused by the weight of the atmosphere. It has a mean value of one atmosphere at sea level but reduces with increasing altitude. Also called barometric pressure. atmospheric pressure n (General Physics) the pressure exerted by the atmosphere at the earth's surface. It has an average value of 1 atmosphere at′mospher

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atmospheric pressure | national geographic society

atmospheric pressure | National Geographic Society

2011-5-14 · The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure.It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes.

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air pressure at altitude calculator – mide technology

Air Pressure at Altitude Calculator – Mide Technology

The pressure at the bottom of the layer is determined from the user provided inputs of the pressure and temperature at sea level knowing that the altitude at the bottom of the layer is 11 km; assuming the default pressure was used at sea level, the pressure at the bottom of the stratosphere is 22,632 Pa.

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chapter 2. atmospheric pressure

CHAPTER 2. ATMOSPHERIC PRESSURE

2014-6-23 · Pressure decreases exponentially with altitude. The fraction of total atmospheric weight located above altitude z is P(z)/P(0). At 80 km altitude the atmospheric pressure is down to 0.01 hPa, meaning that 99.999% of the atmosphere is below that altitude. You see that the atmosphere is of relatively thin vertical extent.

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