Posted by **Anonymous** on Tuesday, November 9, 2010 at 6:04pm.

Winds in a certain city can attain sustained speeds of 45 m/s when the jet stream descends during spring. Approximately what force does a roof with an area of 200 m^2 experience due to the Bernoulli effect, assuming air flow is completely laminar? Density of air is 1.14 kg/m^3 with atmospheric pressure 88,900 Pa.

- physics -
**bobpursley**, Tuesday, November 9, 2010 at 6:55pm
It is approximately

(1/2)*(air density)*V^2*(roof area), but depends upon what the pressure inside the house is, and that depends upon which windows or doors are open.

Air density is about 1.2 kg/m^3.

## Answer This Question

## Related Questions

- Math - An airplane flies 500 mi/h in still air. Flying with the jet stream, the ...
- trig - jet stream which is flowing at a rate of 80 miles per hour. It travels ...
- trig - A plane climbs into the jet stream which is flowing at a rate of 80 miles...
- Science - Winds in the Northern Hemisphere curve to the right and winds in the ...
- physics - A jetliner can fly 5.57 hours on a full load of fuel. Without any wind...
- physics - An airplane flies 200km due west from city A to city B and then 305km ...
- Physics - A fireman, 43.7 m away from a burning building, directs a stream jet ...
- physics - A 45 m/s (100 mph) wind blows across the top of a flat-roofed house. ...
- Physics - A ﬁreman, 34.9 m away from a burning building, directs a stream...
- College Physics - An airplane flies 200 km due west from city A to city B and ...

More Related Questions