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String Instruments. In a stringed instrument, there are strings of various thicknesses. Generally, for a given material, the thicker the string the higher the linear density. Which of the following is true of these different strings? (Assume that the tensions are similar.)

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## String Instruments

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**String Instruments**In a stringed instrument, there are strings of various thicknesses. Generally, for a given material, the thicker the string the higher the linear density. Which of the following is true of these different strings? (Assume that the tensions are similar.) • The thickest string produces the highest frequency, the thinnest string produces the lowest. • The thinnest string produces the highest frequency, the thickest string produces the lowest. • None of the above.**String Instruments**In a stringed instrument, a string is tuned by changing its tension. If a string is playing flat (too low a frequency), you should • increase the tension. • decrease the tension. • None of the above.**String Instruments**In some stringed instruments, there are frets you can press the string against, to shorten the length of string that is vibrating. By doing this, you would • increase the frequency and pitch. • decrease the frequency and pitch. • None of the above.**Speed of Sound**The bulk modulus of air is proportional to the Kelvin temperature of the air. If the Kelvin temperature of the air increases by 1% (about 3 degrees near room temp), then • the speed of sound in the air will increase by 1%. • the speed of sound in the air will decrease by 1%. • the speed of sound in the air will increase by less than 1%. • the speed of sound in the air will decrease by less than 1%.

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