Lecture Note
Atmospheric Pressure
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University
University of Cambridge Course
0625 IGCSE | PhysicsPages
1
Academic year
2023
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drake Austin clay
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0
p {margin: 0; padding: 0;} No. Date Physcs. "AtMospheric Pressure" The pressure exerted by the at Mosphere on earth W called AtMospheric pressure. It IS equivalent to a weight of 10 bones on 1ri Atsea level , Atmospheric pressure Is equal to 76cm of Mercury Column Then Atmospheric Pressure. = hdg. 76x 13.6 x 96 dyne/cm2 = 0,76x 1.36 x10 x 28 M/M Thus , I atm= = 1013 X105 NM (or P3) the asmospheric preasure does not crush our body because the pressure oftheblood Flowing through our carculary System balanced by this pressure Atmosphere pressure W Also Measured In for and barr 1 forr 1MM of mercury Column 1 bar= 10 pa. Pressure measuring device are open tube ManuMeter tyre pressure, Gauge
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