problem_pdf.l - Patel (sap785) homework #11 shubeita...

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Unformatted text preview: Patel (sap785) homework #11 shubeita (58645) 1 This print-out should have 14 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Suppose a piano tuner hears 3 beats per sec- ond when listening to the combined sound from his tuning fork and the piano note being tuned. After slightly tightening the string, he hears 5 beats per second. Should the string be loosened or tightened? 1. The string should be tightened because the frequency of the string is 5 Hz below the correct freguency. 2. The string should be loosened because the frequency of the string is 5 Hz below the correct frequency. 3. The string should be loosened because the frequency of the string is 5 Hz above the correct frequency. 4. The string should be tightened because the frequency of the string is 5 Hz above the correct frequency. 5. The string should be loosen to increase its frequency. 002 10.0 points A typical decibel level for a buzzing mosquito is 40 dB, and normal conversation is approxi- mately 50 dB. How many buzzing mosquitoes will produce a sound intensity equal to that of normal conversation? 003 10.0 points Two wires are made of the same material but the second wire has twice the diameter and twice the length of the first wire. When the two wires are stretched, and the tension in the second wire is also twice the tension in the first wire, the fundamental frequency of the first wire is 360 Hz....
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problem_pdf.l - Patel (sap785) homework #11 shubeita...

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