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Grade: 11
        
the atmospheric pressure at a height 6 km decreases to nearly half of its value at sea level.but pressure is directly proportional to height, P=h row g
one year ago

Answers : (1)

Arun
24740 Points
							
actually, at higher altitudes the air column above decreases. so, the air will expand and then density decreases. Also at higher altitudes gravity is less because of which air molecules can spread freely. Hence density of air decreases with increasing altitude. therefore, density of air , 6km above the sea level
also , acceleration due to gravity at height 6km
We also know that hydrostatic pressure is directly proportional to density of the fluid and the height of the liquid column above that level. P = ρgh
As both density of air and height of the air column 6 km above sea level are less compared to that at the sea level ,Atmospheric pressure decreases to nearly half of its value at 6 km above the sea level.
 
one year ago
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