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OpenStudy (anonymous):
A copper rod at 25 degrees C is 1.5 m long. How long would it take a sound to move through the rod from one end to another? A. 2.9 * 10^-4 s B. 4.2 * 10^-4 s C. 9.8 * 10^-4 s D. 4.5 * 10^-3 s ***i will draw a table! :)
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OpenStudy (anonymous):
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