A sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.

On a particular day the speed of sound in air is 340 m/s. If a plane flies at a speed of 680 m/s, is its Mach number (a) 1.5, (b) 2.0, (c) 2.5, or (d) 2.7?

A cable with a linear density of =0.2 kg/m is hung from telephone poles. The tension in the cable is 500.00 N. The distance between poles is 20 meters. The wind blows across the line, causing the cable resonate. A standing waves pattern is produced that has 4.5 wavelengths between the two poles. The air temperature is T=20C . What are the frequency and wavelength of the hum?

If you shout across a canyon and hear the echo 0.80 s later, how wide is the canyon? Use the speed of sound as 340 m/s.

An aircraft flies directly overhead at an altitude of 5 km. If the sound of the aircraft is heard 6 s later, determine the speed and Mach number of the aircraft. Assume an average air temperature of 10°C.

A hiker shouts towards a vertical cliff that is 465 m away. The echo is heard 2.75 s later. What is the speed of sound of the hiker's voice in air?

On the planet Venus a rare volcanic eruption occurs. The sound of it is 30 Hz and it has a wavelength of 13.7 m. How fast must the speed of sound be on Venus?

A rock is dropped into an abandoned mine and a splash is heard 6 s later. Assuming that it takes a negligible time for the sound to travel up the mine shaft, determine the depth of the shaft and how fast the rock was falling when it hit the water.

(II) A person, with his ear to the ground, sees a huge stonestrike the concrete pavement. A moment later two soundsare heard from the impact: one travels in the air and theother in the concrete, and they are 0.80 s apart. How faraway did the impact occur? See Table 12–1.