10. The highest key on a piano corresponds to a frequency about 150 times that of the lowest key.  If the string for the highest note is 5.0 cm long, how long would the string for the lowest note have  to be if it had the same mass per unit length and was under the same tension

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Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.