Tape two plastic straws tightly together along their
Chapter 10, Problem 10.65(choose chapter or problem)
Tape two plastic straws tightly together along their entire length, but with a 2-cm offset. Hold them in a stream of very hot water from a faucet so that the water pours through one straw but not the other. Quickly hold the straws up and sight along their length. You should be able to see a very slight curvature in the tape. The effect is small, so look closely. Running cold water through the same straw and again sighting along the length will helpyou see the small change in shape more clearly. Explain these observations.
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