Exam 12: The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

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The lowest A on a piano has a frequency of 27.5 Hz.If the tension in the 2.0-m long string is 151 N and one-half wavelength occupies the string,what is the mass of the string?

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Wave #1 has frequency f1 and wavelength λ1.Wave #2 has frequency f2 = 6 f1 and wavelength λ2 = 2λ1.How does the speed v2 of wave #2 compare with the speed v1 of wave #1?

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A wave is traveling in a string at 60 m/s.When the tension is then increased 60%,what will be the resulting wave speed?

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A 2.0-m long piano string of mass 40 g is under a tension of 338 N.Find the speed with which a wave travels on this string.

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Waves propagate at 4.0 m/s along a stretched string.The end of the string is vibrated up and down once every 3.0 s.What is the wavelength of the waves that travel along the string?

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A string with fixed ends is made to go into standing wave patterns.At a given tension,the lowest frequency for which such a pattern exists is 150 Hz.Which of the following frequencies would also cause a standing wave pattern in this case?

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Doubling the mass per unit length of a guitar string will result in changing the wave speed in the string by what factor?

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A standing wave is set up in a 2.0-m string fixed at both ends.The string vibrates in 3 distinct segments when driven by a 120-Hz source.In how many distinct standing wave segments will the string vibrate if the tension is increased by a factor of 4?

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For a wave traveling in a string,by what factor would the tension need to be increased to triple the wave speed?

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If a radio wave has speed 3.00 × 108 m/s and frequency 99.7 MHz,what is its wavelength?

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Standing waves can result from _____ waves.

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A standing wave is set up in a 100-cm string fixed at both ends.The string vibrates in 5 distinct segments when driven by a 120-Hz source.What is the wavelength?

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A note is being played on a string on a guitar.The string is then pushed to the side while still in contact with the same fret.What happens to the frequency of the note then played compared to the original note?

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The superposition principle has to do with which of the following?

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A wave travels in a string at 60 m/s.A second string of 40% greater linear density has the same tension applied as in the first string.What will be the resulting wave speed in the second string?

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Two water waves meet at the same point,one having a displacement above equilibrium of 60 cm and the other having a displacement above equilibrium of 40 cm.At this moment,what is the resulting displacement above equilibrium?

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A string of length L with fixed ends is made to go into standing wave patterns.What is the longest wavelength associated with all possible standing wave patterns in this situation?

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Sound waves of a certain frequency in air having a wavelength of 1.9 m will have what wavelength in water? Take the speed of sound in air to be 340 m/s and in water to be 1 490 m/s.

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A wave on a string has a wavelength of 0.90 m at a frequency of 600 Hz.If a new wave at a frequency of 300 Hz is established in this same string under the same tension,what is the new wavelength?

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A 1.5-m string is held fixed at both ends.When driven by a 180-Hz source,the string vibrates in 3 distinct segments.What is the natural fundamental frequency of the string?

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