Children make toy telephones by sticking each end of a long string through a hole in the
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Children make toy telephones by sticking each end of a long string through a hole in the bottom of a paper cup and knot-ting it so it will not pull out. When the spring is pulled taut, sound can be transmitted from one cup to the other. How does this work? Why is the transmitted sound louder than the sound traveling through air for the same distance?
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University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford
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