y is it, when u blow gently between 2 papers, it moves towards each other??

Answer 1

This is because of Bernoulli's Principle. In regions of faster moving fluids (or gases), the pressure is lower. The air blowing between the pieces of paper follow this principle and the result is lower pressure between the papers. The air on the outside of the papers pushes the papers together because of the imbalance of pressures.

Answer 2

This is because of Bernouli's principle.

When you move the air between the papers then the air between them moves fastly and the pressure on the two papers decreases and the pressure on the other side increases (Relatively) so the papers move towards each other.

His principle also explains the same.

Hope you understand this.

Answer 3

Bernoulli principle
The Swiss scientist, Daniel Bernoulli (1700-1782), demonstrated that, in most cases, the pressure in a fluid (air, water, gas, etc.) decreases as the fluid moves faster. This explains in part why a wing lifts an airplane and why a baseball curves.

Answer 4

The Bernoulli priniciple. Odd as it may sound when you force a large volume of air through a constricted space the pressure actually drops, that's why the papers move toward each other.

http://en.wikipedia.org/wiki/Bernoulli%27s_principle

Answer 5

According to BERNOLY's principle , when the speed of a gas increases , its pressure decreases , so when you blow between to papers the speed of the air inbetween increases so its pressure decreases hence the diffrence of the gases' pressure enables the outer gas to push the papers closer to eachother.

Answer 6

same force as lifts the planes - faster moving air has less pressure. air on the outside of paper sheets remains at constant pressure, and pushes papers together.