Shown on the right are two pieces of paper that are hanging side-by-side, about

Question

Shown on the right are two pieces of paper that are hanging side-by-side, about an inch apart. Suppose that somone blows down (in the direction of the black arrow) between the pieces of paper In the diagram below, drag the bottom ends ci the pieces of paper to show how they would move. The pieces or paper behave this way because The pieces of paper behave this way because - the air pressure between them is higher than the air pressure around them the air pressure between them is lower than the air pressure around them the net force on them is equal to weight of the air displaced by the blown air the velocity of the air between them Is lower than the velocity of the air around them This behavior provides an example of Boyle's law Pascal's principle Archimedes's principle Bernoulli's principle

Explanation / Answer

1)B) The air pressure beween them is lower than the air pressure around them

Here is the explanation, P1 + 0.5*rho*v1^2(in between the papers) = P2 + 0.5*rho*V2^2(out side)

P1 + 0.5*rho*v1^2 = P2 (here V2 = 0)

so, clealry P2(around) > P1(inbetween)

2) D)Bernoulli's pricnciple

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