You have two identical buckets. You are filling them with water from the
garden hose. It takes 30 seconds to fill the first one. You notice
that the water comes out "faster" when you put your thumb over the end
of the hose a little bit. How long do you think it will take to fill
the second bucket? Explain how you know.
In your own words, without parroting the text, explain what the
"equation of continuity" for fluids means. Interpret it in physical
terms. Imagine you were explaining it to your brother/sister/mother
who hasn't taken physics at all.
If the airstream from a hair dryer is directed ove a ping pong
ball, the ball can be levitated. Explain how this works.