Standing waves can be produced within an aluminum rod by holding the rod at its midpoint and stroking it with an alcohol-saturated paper towel. In this resonance mode, the middle of the rod is a node and the ends are antinodes, just like the first harmonic of an "open-open" system. What is the frequency of the resonance if the rod is 1.1 m long? Note that the sound waves travel back and forth inside the aluminum, not in the air, so use the velocity of sound in aluminum as 5100 m/s
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.
Standing waves can be produced within an aluminum rod by holding the rod at its midpoint
and stroking it with an alcohol-saturated paper towel. In this resonance mode, the middle of the
rod is a node and the ends are antinodes, just like the first harmonic of an "open-open" system.
What is the frequency of the resonance if the rod is 1.1 m long? Note that the sound waves
travel back and forth inside the aluminum, not in the air, so use the velocity of sound in
aluminum as 5100 m/s
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