# Physics - Matter

posted by .

Wind blows around a skyscraper with a speed of 18 m/s outside a large pane of plate glass. What is the difference in air pressure between the inside and outside of the skyscraper? Take the density of air to be 1.3 kg/m3 and assume the air inside the skyscraper is still.

• Physics - Matter -

According to the Bernoulli equation,

delta P = (1/2)*(air density)*V^2

V is the outside velocity, 18 m/s

The pressure difference will be in Pascals

## Similar Questions

1. ### physics

(a)If the wind blows at 30m/s over the roof of your house, what is the pressure difference at the roof between the inside and outside air (b) What net force does this pressure difference produce on a roof having an area of 175m^2?

If wind blows at a speed of 30 m/s over the roof of your house, what is the pressure diference on your roof between the air inside and the air outside?
3. ### physics

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside …
4. ### physics

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside …
5. ### physics

a)Estimate how long it takes for the cold air to fall out when you open the door of your refrigerator. For simplicity, assume your fridge is a cube of height 1 meter, and that the cold air inside is 5% denser than the warm air outside. …
6. ### Physics

Hot air balloons float in the air because of the difference in density between cold and hot air. In this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. To do this, use …
7. ### PHYSICS - HELP

A wind with speed 45 m/s blows across a roof 20 m long and 12 m wide. The pressure inside the room is 1 atm. What is the net force on this roof due to the pressure difference inside and outside the roof?
8. ### physics

A 45 m/s (100 mph) wind blows across the top of a flat-roofed house. Calculate the net force on the roof due to the pressure differential from inside the house to the outside. Assume that the pressure in the house is atmospheric pressure …
9. ### Physics

A tropical cyclone with wind speed of 170km/h. "Estimate the air pressure at the eye of the cyclone." Assuming that: *it is a laminar flow of air *wind speed outside the cyclone is zero. * the pressure is at normal atm pressure outside …
10. ### English

Fill a glass with water. Cover the glass with paper. Turn the glass upside down. The water stays in the glass. 1. The outside air pressure is greater than the inside air pressure. ------------------------------------ This is about …

More Similar Questions