Fluid Mechanics Question
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As part of a physics demonstration, Mr. Taylor suspends two ping pong balls next to each other so that they have a small space between them. He then turns on a hairdryer and has it blow air in the space between the two ping pong balls. Which of the following should happen?
- the two balls do not move
- the two balls move upward
- the two balls move further apart
- the two balls move closer together