3. A string with length L and mass m is under a tension T. Find the lowest frequency (fundamental frequency) at which the string will vibrate. Also, what are the next two higher frequencies at which it will vibrate?

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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.