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will give you 10 points please? 1 . A particular guitar string is supposed to vibrate at 200 Hz, but it is measures to actually vibrate at 205 Hz. By what % should the tension in the string be changed to get the frequency to the correct value? 2 Compare the intensities and the amplitude...

(1) What are the lowest and the highest frequencies that an ear can detect when the intensity level is 30dB. (2). A pipe in air at 20 C is to be designed to produce two successive harmonics at 240 Hz and 280Hz. How long the pipe must be, and is it open or closed (3) How many overtones are...