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October 22, 2014

Homework Help: physics

Posted by paro on Monday, April 5, 2010 at 1:21pm.

Many cultures around the world still use a simple weapon called a blowgun, a tube with a dart that fits tightly inside. A sharp breath into the end of the tube launches the dart. When exhaling forcefully, a healthy person can supply air at a gauge pressure of 6.0 kPa.
What force does this pressure exert on a dart in a 1.4-cm-diameter tube?

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