A sound wave in air has a pressure amplitude equal to 4.00 x 10-3 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz?
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A sound wave in air has a pressure amplitude equal to 4.00 x 10-3 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz?
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- Q# 02 As a certain sound wave travels through the air, it produces pressure variations (above and below atmo- spheric pressure) given by AP = 1.27 sin (7x - 3407t) in SI units. Find (a) the amplitude of the pressure vari- ations, (b) the frequency, (c) the wavelength in air, and (d) the speed of the sound wave.Please asapA speaker-driver supplies W watts of power to waves traveling on an elastic sheet. As these waves travel outward in circular ripples, the intensity of the wave at a radius of 10 cm. is 5 W/cm. The power emitted by the source is
- Two identical waves travel in the same direction, each with a wavelengthX= 1m and speed v = 20 m/s. When the two waves interfere, they form a resultant wave. The angular frequency of the resultant wave is:If the vocal tract of a human is considered a closed tube 17 cm in length, what is the frequency of what would become the second harmonic? Consider 340 m/s as the speed of sound. The answer must be in Hz units.A sound wave is modeled with the wave function ΔP = 1.20 Pa sin (kx − 6.28 × 104 s−1 t) and the sound wave travels in air at a speed of v = 343.00 m/s. (a) What is the wave number of the sound wave? (b) What is the value for ΔP(3.00 m, 20.00 s) ?
- Approximately a third of people with normal hearing have ears that continuously emit a low-intensity sound outward through the ear canal. A person with such spontaneous otoacoustic emission is rarely aware of the sound, except perhaps in a noisefree environment, but occasionally the emission is loud enough to be heard by someone else nearby. In one observation, the sound wave had a frequency of 1665 Hz and a pressure amplitude of 1.13 *10-3 Pa. What were (a) the displacement amplitude and (b) the intensity of the wave emitted by the ear?Suppose a spherical loudspeaker emits sound isotropically at 10 W into a room with completely absorbent walls, floor, and ceiling (an anechoic chamber). (a) What is the intensity of the sound at distance d= 3.0 m from the center of the source? (b) What is the ratio of the wave amplitude at d= 4.0 m to that at d= 3.0 m?An organ pipe is open at both ends. It is producing sound at its n = 3 harmonic, the frequency of which is 164 Hz. Take the speed of sound to be 345 m/s. What is the length of the pipe?
- Two progressive waves yj = A sin( 4 x - ot) and y2 = A sin( 2" x – ot – 5) travel in the same direction. Calculate the velocity of the wave produced as a result of interference of these two waves. Take A = 5 cm, 1 =8.7 m and w =12.7 rad/s (radian per second). Give your answer in Sl units.The amplitude of a wave disturbance M20 (1 positive x-direction is given by y = Tetromabruts esd (1+x)² by y = 1 ad m travelling in the at time t = 0 and [1 + (x − 1)²] - at t = 2 s, where x and y are in metre. The shape of the wave disturbance does not change during the propagation. The velocity of the wave is...... m/s.can you please ans (a), (b) & (c)?