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49. We use the equation of continuity. Let
v
1
be the speed of the water in the hose and
v
2
be its speed as it leaves one of the holes.
A
1
=
π
R
2
is the crosssectional area of the hose.
If there are
N
holes and
A
2
is the area of a single hole, then the equation of continuity
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 Spring '08
 Any
 Physics

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