The air pressure acting on the roof of your house is...
a) comes from the air within a few feet of your rooftop.
b) is much greater on top of the roof than below it.
c) comes from all the air above your roof.
d) is much greater underneath your roof than on top of it.
2007-05-01 14:30:59 · 5 answers · asked by JeSuSfReAk121 2 in Science & Mathematics ➔ Other - Science
There is no air pressure acting on the roof of your house normally; since the attic is vented, the pressure is equal on both sides of the roof and there is no net force.
Under very high winds, aerodynamic lift can put a load on the roof and blow it off- but that takes tornados, hurricanes, or other powerful wind storms.
2007-05-01 18:03:26 · answer #1 · answered by DT3238 4 · 0⤊ 0⤋
There is no air pressure differential acting on the roof of my house unless the wind is blowing, and that is known as a wind load. Building and house roofs are not designed for differences in pressure fom outside to inside because of atmospheric pressure because they do not exist.
2007-05-01 17:38:28 · answer #2 · answered by gatorbait 7 · 0⤊ 0⤋
C) is the answer. The air pressure on your roof is the weight of all the air above it. But that same pressure is acting on bottom of the roof too, which is why D and B are _not_ true.
Owens
2007-05-02 03:18:59 · answer #3 · answered by Owens 1 · 0⤊ 0⤋
d) is much greater underneath your roof than on top of it.
Composition of the earth's atmosphere
Air pressure and air density
Layers of the atmosphere
Energy in physical systems
Temperature
Heat transfer
2007-05-01 14:44:04 · answer #4 · answered by Yoo 3 · 0⤊ 0⤋
no idea
2007-05-04 22:55:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋