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The drag coefficient is always associated with a particular surface area. [3] The drag coefficient of any object comprises the effects of the two basic contributors to fluid dynamic drag: skin friction and form drag. The drag coefficient of a lifting airfoil or hydrofoil also includes the effects of lift-induced drag.
Équivalences. Une pression de 1 atm peut également être exprimée comme :. ≡1,013 25 bar ≡101,325 kPa ≡1013,25 millibars (ou encore 1013,25 hectopascals (hPa)) ≡760 torr
جو (atmosphere اختصاراً atm) هي وحدة عالمية لقياس الضغط وتعادل 101325 باسكال.. التاريخ. اعتمدت وحدة الجو لقياس الضغط عام 1954 في المؤتمر العام للأوزان والمقاييس على أنها تساوي بدقة مقدار 1,013,250 داين لكل سنتيمتر مربع، أي ما يعادل 101325 ...
L'atmosphère est l'enveloppe gazeuse qui entoure certains astres : atmosphère stellaire pour une étoile, atmosphère planétaire pour un corps planétaire ( planète, planète naine ou satellite, voire une exoplanète ). Dans le cas d'une planète « gazeuse », l'atmosphère désigne la partie de la planète dont la matière est en phase ...
This is an audio version of the Wikipedia Article:https://en.wikipedia.org/wiki/Atmosphere_(unit)00:00:16 1 History00:00:34 2 Pressure units and equivalencie...
The bar (symbol bar ), decibar (symbol dbar) and the millibar (symbol mbar, also mb) are units of pressure. They are not SI units, but they are still used in descriptions of pressure. Although the use of those units is discouraged, the bar is about the same as atmospheric pressure .
The standard atmosphere (symbol: atm) is an international reference pressure defined as 101325 Pa and formerly used as a unit of pressure.[1] For practical purposes it has been replaced by the bar which is 105 Pa.[1] The difference of about 1% is not significant for many applications, and is...
