A 3.00 m long air column is open at both ends. The frequency of a certain harmonic is 410 Hz, and frequency of the next higher harmonic is 492 Hz. Determine the speed of sound in the air column. Then,a trumpet creates a sound intensity level of 110 dB at a distance of 1.00 m. What is the sound intensity of five trumpets at this distance?

A sound wave represented by A = 0.0613 sin (2.81x - 978t). The density of air is 1.20 kg/m3. What is the maximum displacement of the air molecules? (b) What is the temperature of the air?

A cylinder is filled with water. When it is let out, we hear one harmonic at 79.5 cm and another at 132.5 cm. If the speed of sound is 345 m/s, determine the resonance frequency of the pipe

A stretched string has a fundamental frequency of 780 Hz. What is the fundamental frequency if the tension is increased by a factor of 3.00?

The pan flute is a musical instrument consisting of a number of closed-end tubes of different lengths. When the musician blows over the open ends, each tube plays a different note. The longest pipe is 0.33 m long. What is the frequency of the note it plays?

From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. You detect a frequency that is 0.855 times smaller than that emitted by the car when it is stationary. The speed of sound is 343 m/s. What is the speed of the car?

Two trumpets are being tuned using beats. One has a frequency of 440 Hz. When the second is played along with it, 15 beats are heard in 5.0 s. What are the possible frequencies of the second trumpet?

Calculate the frequency of a sound wave in helium if its displacement amplitude is 3.6 x 10-10 m and the pressure amplitude is 7.2 x 10-5 N/m². The density of helium is 0.166 kg/m³ and the speed of sound in helium is 2660 m/s. Answer in units of Hz.

The speed of sound in a solid medium is given by ?=?/?‾‾‾‾√v=E/ρ where ?E is the value of Young's modulus for the solid and ?ρ is the density.  A sound wave travels at 5.8×1035.8×103 m/s in a steel rod of length 1.11 m, diameter 2.0 cm and mass 7.0 kg.  Use the data to determine the value of the Young's modulus for steel. Give your answer in giga-pascal (GPa, 109 Nm-2).

A physics professor demonstrates the Doppler effect by tying a 450 HzHz sound generator to a 1.0-mm-long rope and whirling it around her head in a horizontal circle at 100 rpm. What is the difference between the highest frequency heard by a student in the classroom and the initial frequency of the sound generator?