The plane sound wave is generated by the source which frequency is v = 400 Hz. The amplitude is 8 mm.
Find the displacement and velocity of a point at the distance 3 m from a source when t = 0.5s.
Velocity of sound wave is 300m/s,
The plane sound wave is generated by the source which frequency is v = 400 Hz....
5. Find a phase difference between the wave source and the point at a distance of 2 m from it. The frequency is 5 Hz, the wave velocity is 40 m/s, the amplitude is 5 m. Write down the equation of this wave procss, if (0,0)-0
4 A point sound source emits a sinusoidal wave at a frequency of 2,000 Hz. The pOwer of the sound at the source is 10 watt. What are: the sound intensity, the sound intensity level and the loudness of that sound at (a) a distance of Im from the source? (b) at a distance of 2m from the source?
S.a) What is the wavelength of a sound wave general fundamental frequency is 128 Hz and it travels with spo the tube? sound wave generated in a tube with two open ends whose d it travels with speed of sound v = 340 m/s? (b) What is the length of (a) = (b) L= = 340 m/s, 11 o. (a) What length should a tube closed at one end have on a day when the speed of sound its fundamental...
1. A source moving with a speed 37 m/s, emits a sound wave with a frequency f = 377 Hz. Determine the frequency detected by a stationary observer if the speed of sound is v = 343 m/s and the source is moving towards the observer. 2.A stationary source, emits a sound wave with a frequency f = 428 Hz. Determine the frequency detected by an observer moving towards the source with a speed v = 43 m/s, if the...
A point source of sound generates a 200 Hz tone. The wave has an intensity of 2.2×10−8 W/m2 at a distance of 3 m from the source. Find the total sound power at the source. At what distance from the source is the decibel level below 15 dB? What is the intensity of the sound at this distance?
Two compact sources of sound oscillate in phase with a frequency of 100 Hz. At a point 5.00 m from one source and 5.85 m from the other, the amplitude of the sound from each source separately is A. The speed of sound in air is 343 m/s. (a) What is the phase difference of the two waves at that point? (b) What is the amplitude (in terms of A) of the resultant wave at that point?
A distant tuning fork of frequency f produces a plane sound wave that moves along the positive x-axis and has an amplitude of A. Write an expression for the displacement at some time t and position x as a function of x, t, f, A, and the speed of sound (v). (Enter π as pi) y =
Question 8 Consider a source emitting sound at frequency f. The speed of sound wave in the medium is v. (a) Show that the Doppler frequency is for a stationary observer as the source approaches at speed v 12 marks (b) Show that the Doppler frequency is f for a stationary observer as the source recedes at speed v, [2 marks (c) Show that the Doppler frequency is vv as the observer and the source are travelling towards each other...
The intesity of a wave is I=2π2ρvf2A2, where ρ is the density of the medium, v is the speed of wave, f is the frequency, and A is the amplitude. The density of air is 1.29 kg/m3, the speed of sound in air is 343 m/s, the intensity of the reference level required to determine the sound level is 1.0×10−12W/m2. What would be the sound level (in dB ) of a sound wave in air that corresponds to a displacement...
A 85.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 85.0-Hz sound wave?