Determine the speed of sound in the air column
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. Determine the speed of sound in the air column.
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A long, straight wire carries a current of 44 A. The magnetic field produced by this current at a certain point is 8.0 10-5 T. How far is the point from the wire?
In the file quizin1.dat (which you should cp to your directory), each line represents a voting card of a registered voter. The character '1' in the i-th indicates that the vote was cast for the i-th candidate. The first 10 columns were
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An illegal drug and the current use pattern in the context of five historical themes and the psychoactive drug classification?
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