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Atmospheric pressure - Wikipedia


Atmospheric pressure, sometimes also called barometric pressure, is the pressure exerted by the weight of air in the atmosphere of Earth In most circumstances ...

What is normal barometric pressure? | Reference.com


Normal barometric pressure is typically around 101.325 kPa / 1013.25 mbar / 760 mmHg / 29/921 inHg. Pressure rarely increases or decreases more than 1 inch ...

Weather: Is the Pressure Getting to You? - Infoplease


But the "inch" is really not a unit of pressure, or force per area. It is a unit of length. So a metric unit has been defined to describe normal atmospheric pressure, ...



The English units of air pressure are inches of mercury. The metric version is millibars. The average sea level pressure is 29.92 inches of mercury and 1013 ...

Units of Pressure: meteorologists use millibars


In aviation and television weather reports, pressure is given in inches of ... At sea level, the weight of the air above this unit area would (on average) weigh 14.7 ...

Atmospheric Pressure: Definition & Facts - Live Science


Aug 29, 2013 ... Atmospheric pressure is the force exerted against a surface by the weight of ... At sea level, the column of mercury will rise (on average) to a height of ... along a scale graduated in pressure units, either in inches or millibars.

Atmospheric Pressure - HyperPhysics


Since static fluid pressure is determined by the fluid density and depth, the depth or height difference of a given liquid is commonly used for pressure measurement: ... This is indicative of the normal pressure drop in a flowing fluid from Poiseuille's ... The mercury barometer is the standard instrument for atmospheric pressure ...

Barometer - Wikipedia


A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. .... His experiment compared water with wine, and since the latter was ... Low pressure allows the mercury...

Mechanical Properties Of Fluids - Study Rankers


Density of air decreases with increase in height from the surface. .... Toricelli's barometer used mercury. Pascal duplicated it using French wine of density 984 kg m<sup>–3</sup>. Determine the height of the wine column for normal atmospheric pressure.

Popular Q&A
Q: How is 1 atmospheric pressure = 10.33 meter of water? - Quora
A: Pressure is defined as the force per unit area. Besides force and area, it is also proportional to ... If you went into a 0 pressure vacuum chamber and dove un... Read More »
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Q: Why are gases poor conductors at normal atmospheric pressure ...
A: Jul 12, 2015 ... Conducting electricity requires charged particles, and normal gasses do not contain many of these. There are some ions present in a gas, and ... Read More »
Source: www.quora.com
Q: Why do weather men report barometric pressure relative to normal ...
A: The problem with a map of the local pressure at stations in complex terrain is that because pressure decreases rapidly with height, such a map would be mostly ... Read More »
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Q: What is the atmospheric pressure at the level of the Dead Sea ...
A: According to Wikipedia, the pressure at the Dead Sea was measured at 796- 799mmHg (106.1-106.5kPa), about 5% more than normal pressure at sea level ... Read More »
Source: www.quora.com
Q: What is the maximum depth for for suction under normal ... - Quor...
A: 30 feet for good electric centrifugal pump. depends on pump type, can be better if powerful ... How would ice VII melt under normal atmosphere pressure? What i... Read More »
Source: www.quora.com