Chapter 17: Q38PE (page 595)
A “showy” custom-built car has two brass horns that are supposed to produce the same frequency but actually emit 263.8 Hz and 264.5 Hz. What beat frequency is produced?
The beat frequency is 0.7 Hz.
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It is more difficult to obtain a high-resolution ultrasound image in the abdominal region of someone who is overweight than for someone who has a slight build. Explain why this statement is accurate.
What is the difference between an overtone and a harmonic? Are all harmonics overtones? Are all overtones harmonics?
People with good hearing can perceive sounds as low in level as\( - 8.00\;{\rm{dB}}\)at a frequency of\(3000\;{\rm{Hz}}\). What is the intensity of this sound in watts per meter squared?
What frequencies will a 1.80 m long tube produce in the audible range at 20.0 C if:
(a) The tube is closed at one end?
(b) It is open at both ends?
Can the average person tell that a \[{\rm{2002}}\;{\rm{Hz}}\]sound has a different frequency than a \[{\rm{1999}}\;{\rm{Hz}}\] sound without playing them simultaneously?
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