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Why is air pressure at the top of a chimney less than air pressure at the bottom?
Wiki User
∙ 13y ago
Smoke rises up the chimney partly because hot air rises and partly because it is pushed
wind blowing across the top of a chimney lowers the air pressure there
the higher pressure at the bottom pushes air and smoke up the chimney
Wiki User
∙ 13y ago
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Why is the level of air pressure less at the top of a mountain than it is at sea level?
Air is denser at lower altitudes and less dense at higher altitudes. If the bottom of the valley is directly below the mountain, at a lower altitude, then there is technically more air in the valley.
Air pressure at an altitude of 3 km is it less than the air pressure at 1 km?
Yes.
Air pressure decreases as?
Air pressure decreases as height is gained. There is less air pressure at the top of a high mountain, than at sea level.
Can mean effective pressure less than atmospheric pressure?
no Because any body subject is affected by the atmospheric pressure in the case of its occurrence under the pressure of what it means that the pressure for increased atmospheric pressure.
Why is the atmospheric pressure at the top of mt Everest 5 lbin squared much less than the atmospheric pressure here on earth 14.7 lbin squared?
The atmospheric pressure is caused by the weight of the air on top of us. At the top of mount Everest, there is less air above the exhausted climber (because a lot of the air is below). Less air, less weight, less pressure.
Why is the air pressure at the top of the chimney less than the pressure at the bottom?
Smoke rises up the chimney partly because hot air rises and partly because it is pushed wind blowing across the top of a chimney lowers the air pressure there the higher pressure at the bottom pushes air and smoke up the chimney
Why is air pressure at the top of the chimney less than air pressure at the bottom?
Smoke rises up the chimney partly because hot air rises and partly because it is pushed wind blowing across the top of a chimney lowers the air pressure there the higher pressure at the bottom pushes air and smoke up the chimney
When the pressure at the bottom of a submerged object is less than the pressure at the top of the submerged object a buoyant force is produced.?
greater than
When the pressure of the bottom of a submerged object is less than the pressure at the top of the submerged object a buoyant force is produced?
greater than
An airplane stays in the air because the air pressure on the top of the wing is less than the pressure on the bottom This creates a phenomenon called what?
Horseisle Answer : Lift
What is the air pressure at the top of the mountain compared to the bottom of the mountain?
The air at the top of the mountain is going to be much less dense than the air at the bottom of the mountain because it is affected less by gravity.
Why bottom width is greater than the top width of chimney?
so that the smoke is concentrated upwards
Why are dams over rivers are made broader at bottom than at the top?
The pressure of the water (the weight) is greater at the bottom, due to the depth of the water. As the pressure is less near the top, the top of the dam wall doesn't need to be as thick as the bottom of the dam wall.
Would the pressure at the bottom of a 3-foot holding tank be different if the tank held motor oil instead of water?
Yes, because the density of oil is less than water. (The pressure would be less with oil.)
What is the purpose of installing a chimney cricket?
A chimney cricket is a sloped structure added to a roof upstream of the chimney to divert rain water away from the chimney. They are installed to reduce the amount of rain water that may enter the house if the sealing around the chimney fails or is less than perfect.
Why are dams made thinner at the bottom?
This is because the pressure in a liquid increases with depth. This means that the pressure at the bottom of the dam is more. Hence it is more liable to break out from the dam as more pressure is exerted on the walls. So, the walls are thicker at the bottom.
Why is atmospheric pressure less at the top of the highest mountain than at the foot of the same mountain?
For the same reason that water pressure is less three feet below the surface than it is 30 feet below the surface. On the ground (on earth) we are at "the bottom of the pool" - the air is heaviest there.
