Question

ᴳⁱᵛᵉ ᵗʰᵉ ⁿᵘᵐᵉʳⁱᶜᵃˡ ᵛᵃˡᵘᵉ ᵒᶠ ᵃᵗᵐᵒˢᵖʰᵉʳⁱᶜ ᵖʳᵉˢˢᵘʳᵉ ᵃᵗ ˢᵉᵃ ˡᵉᵛᵉˡ..ᵖˡˢ ᵗᵉˡˡ​

Answer 1

Answer:

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 over the barometer. Atmospheric pressure is also measured using an aneroid barometer, in which the sensing element is one or more hollow, partially evacuated, corrugated metal disks supported against collapse by an inside or outside spring; the change in the shape of the disk with changing pressure can be recorded using a pen arm and a clock-driven revolving drum.

Answer 2

Answer:

The mean atmospheric pressure at sea level is given equivalently as

P = 1.013x 10^5 Pa

Or

= 1013 hPa

Or

= 1013 mb

Or

= 1 atm

Or

= 760 torr.

Explanation:

$Formula \\ </p><p>P_h= P_0 e^{\frac {-mgh}{kT}} \\ </p><p>P_h = pressure \: at \: height h \\ </p><p>P_0 = sea \: level \: pressure \\ </p><p>g = acceleration \: due \: to \: gravity \\ </p><p>k = Boltzmann's \: constant \\ (ideal \: gas \: constant \: divided by \\ Avogadro's \: number) \\ </p><p>T = absolute \: temperature \\ </p><p>m = mass \: of \: one \: air \: molecule \\ </p><p>$

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