Atmospheric pressure (atm)
Explanation:Atmospheric pressure (atm) is the pressure exerted on a surface area by the weight of the air above the surface of the object. At sea level atmospheric pressure is measure a 14.7psi. The most common way to measure air pressure is with a barometer.
atmospheric pressure is the pressure applied by atmosphere on per unit are
we can measure it by using a barometer
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the air inside the can is heavier in weight and the molecules are closely packed when there arises a temperature difference the the atmospheric pressure crushes the can
whereas in the pan the heated air is expanding inside the air and maintaining it's shape the atmospheric pressure cannot act on as the hot air is already increasing the pressure from inside
The pressure exerted by the earth's atmosphere at any given point, being the product of the mass of the atmospheric column of the unit area above the given point and of the gravitational acceleration at the given point.A value of standard or normal atmospheric pressure, equivalent to the pressure exerted by a column of mercury 29.92 inches (760 mm) high, or 1013 millibars (101.3 kilopascals).
Wind blowing in a spiral form around an area of low atmospheric pressure if called as a cyclone. The winds which are blowing from the high atmospheric pressure areas towards the low atmospheric pressure areas are called as cyclonic winds. The Coriolis Force which is caused by the Earth's rotation on its own axis is also responsible for cyclones.