Periodic waves

A longitudinal wave with a frequency of 3.0 Hz takes 1.7 seconds to travel the length of a 2.5m Slinky. Determine the wavelength of the wave.

The Speed of a Wave

A 0.75 m string is stretched so the tension is 2.3N. A transverse wave with a frequency of 150 Hz and a wavelength of 0.40 m travels on the string. What is the mass of the string?

Sound : Calculating the angular speed of a rotating disk.

A siren can be made by blowing a jet of air through 20 equally spaced holes in a rotating disk. The time it takes for successive holes to move past the air jet is the period of the sound. The siren is to produce a 2,200 Hz tone. What must be the angular speed (omega) in rad/s of the disk?

Sound Waves : Calculating the fundamental frequency of an ear canal.

Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is about 2.9 cm. The speed of sound is 343 m/s. What is the fundamental frequency of the canal?

Sound waves : Calculating the longest and shortest pipe lengths in a pipe organ.

The range of human hearing is roughly from twenty Hz to twenty kilohertz. Based on these limits and a value of 343 m/s for the speed of sound, what are the lengths of the longest and shortest pipes ( open at both ends and producing sound at their fundamental frequencies) that you expect to find in a pipe organ?