What is the length of a pipe that is open on both ends and has a fundamental frequency of 400 Hz? You may assume the speed of sound in air is 341 m/s.

A sound wave has frequency f and velocity VM in a particular solid medium. What is its wavelength in the medium? f = 400 Hz; (in m) VM = 3720 m/s; OA: 9.300 OB: 1.237x10¹ OC: 1.645x10¹ OD: 2.188x10¹ OE: 2.910x10¹ OF: 3.870x10¹ OG: 5.147x10¹ OH: 6.846x10¹

A sound wave arriving at your ear is transferred to the fluid in the cochlea. If the intensity in the fluid is 0.410 times that in air and the frequency is the same as for the wave in air, what will be the ratio of the pressure amplitude of the wave in air to that in the fluid? Approximate the fluid as having the same values of density and speed of sound as water. Speed of sound in dry air (20.0°C, 1.00 atm) is 343 m/s, density of dry air (at STP) is 1.29 kg/m3, density of water is 1000 kg/m3, and speed of sound in water is 1493 m/s.

A pipe of air closed at one end is measured to have a fundamental frequency of 583 Hz on a 20.0 ◦C day. The pipe is then filled with water. What is the frequency of the second overtone? Recall that the speed of sound in water is 1480 m/s. Focus on the formula used please, thanks in advance.