Problem 1.
A saxophone is playing a steady note of frequency 266 Hz. The temperature in the room is 25 C. Suppose that at some instant the varying pressure at your eardrum is at a maximum. How far away in meters is the next pressure maximum?
Solution
Problem 2.
(Inquiry into Physics5th ed.,Ostdiek,Bord) The quartz crystal used in an electric watch vibrates with frequency 32,768 Hz. What is the period of the crystals motion?
Solution
Problem 3.
A sound wave traveling at 350 m/s has a frequency of 500 Hz. What is its wavelength?
Solution
Problem 4.
Estimate how far away a cicada can be heard if the lowest possible audible intensity of a sound it produces is and the power of the cicada's sound source is .
Solution
Problem 5.
Light of wavelength 497.0 nm appers to have a wavelength of 500.2 nm when it reaches eart from a distance star. Find the velocity of the star if the speed of light is 300000000 m/s.
Solution
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