Air molecules colliding with a surface cause atmospheric pressure. Atmospheric pressure at sea level is about 101,000 Pa (101 kPa) but just 27,000 Pa (27 kPa) at the cruising altitude of a ...

Atmospheric pressure is the force exerted against a surface by the weight of the air above the surface. Skip to main content. ... located at an altitude of 9,200 feet (2,804 m) ...