Chapter 12: Q32P (page 328)
Question: (II) Estimate the frequency of the “sound of the ocean” when you put your ear very near a 15-cm-diameter seashell (Fig. 12–35).
The fundamental frequency of the seashell is \(576.6{\rm{ Hz}}\).
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
Question: Two open organ pipes, sounding together, produce a beat frequency of\({\bf{6}}{\bf{.0}}\,{\bf{Hz}}\). The shorter one is \({\bf{2}}{\bf{.40}}\,{\bf{m}}\) long. How long is the other?
A musical note that is two octaves higher than a second note
(a) has twice the frequency of the second note.
(b) has four times the frequency of the second note.
(c) has twice the amplitude of the second note.
(d) is 3 dB louder than the second note.
(e) None of the above.
A guitar player shortens the length of a guitar’s vibrating string by pressing the string straight down onto a fret. The guitar then emits a higher-pitched note because
(a) the string’s tension has been dramatically increased.
(b) the string can vibrate with a much larger amplitude.
(c) the string vibrates at a higher frequency.
Question: Manufacturers typically offer a particular guitar string in a choice of diameters so that players can tune their instruments with a preferred string tension. For example, a nylon high-E string is available in a low- and high-tension model with diameter 0.699 mm and 0.724 mm, respectively. Assuming the density \(\rho \) of nylon is the same for each model, compare (as a ratio) the tension in a tuned high-and-low tension string.
Is there a Doppler shift if the source and observer move in the same direction, with the same velocity? Explain.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
