Here are two common demonstrations of Bernoulli effects: (a) If you hold a narrow strip of paper
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(a) If you hold a narrow strip of paper in front of your mouth and blow over the top surface, the strip will rise (Fig. 9.33a). (Try it.) Why?
(b) A plastic egg is sup-ported vertically by a stream of air from a tube (Fig. 9.33b). The egg will not move away from the mid-stream position. Why not?
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a The air flow above the paper decreases the pressure there This creates a pre...View the full answer
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