Chapter 17: Q3PE (page 629)
Calculate the speed of sound on a day when a 1500 Hz frequency has a wavelength of 0.221 m.
The speed is 331.5 m/s.
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
a) What is the speed of sound in a medium where a 100 kHz frequency produces a 5.96 cm wavelength? (b) Which substance in Table 17.1 is this likely to be?
Question: Ten cars in a circle at a boom box competition produce a \(120\;{\rm{dB}}\)sound intensity level at the center of the circle. What is the average sound intensity level produced there by each stereo, assuming interference effects can be neglected?
Six members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still hear the music
and perform the combinations in the water perfectly. One day, they were asked to leave the pool so the dive team could practice a few dives, and they tried to practice on a mat but seemed to have a lot more difficulty. Why might this be?
Suppose a person has a \({\rm{50 - dB}}\)hearing loss at all frequencies. By how many factors of\({\rm{10}}\)will low-intensity sounds need to be amplified to seem normal to this person? Note that smaller amplification is appropriate for more intense sounds to avoid further hearing damage.
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?
What do you think about this solution?
We value your feedback to improve our textbook solutions.
