A 60.0 cm long string is vibrating in such a manner that it forms a standing wave with three antinodes. (The string is fixed at both ends.) (a) Which harmonic does this wave represent? O first harmonic O second harmonic O third harmonic O fourth harmonic O none of the above (b) Determine the wavelength (in cm) of this wave. cm (c) How many nodes are there in the wave pattern? O 1 2 O 3 04 O none of the above (d) What If? If the string has a linear mass density of 0.00500 kg/m and is vibrating at a frequency of 220.0 Hz, determine the tension (in N) in the string. N

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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.