A loudspeaker emits a sound wave at a particular frequency. If the intensity of the wave is doubled, how does the speed of the wave change? What if the frequency is doubled?
Speed of the wave doesn't depend on intensity of wave, or frequency of wave. Speed of wave depends only on the properties of the medium through which it is propagating.
Therefore speed of wave will remain unaffected in both cases
A loudspeaker emits a sound wave at a particular frequency. If the intensity of the wave...
a concert loudspeaker suspended high off the ground emits 50 W of sound power. what is the sound intensity that reaches an audience menber 10 m away from the speaker? how many decibels does the audience member hear?
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?
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
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 concert loudspeaker suspended high off the ground emits 32 W of sound power. A small microphone with a 1.0 cm2 area is 56 m from the speaker. What is the sound intensity at the position of the microphone? What is the sound intensity level at the position of the microphone?
A concert loudspeaker suspended high off the ground emits 39 W of sound power. A small microphone with a 1.0 cm2 area is 44 m from the speaker. What is the sound intensity at the position of the microphone? What is the sound intensity level at the position of the microphone?
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 W (a) Find the intensity 10.7 m from the source. 0.76 Your response differs from the correct answer by more than 100%, w/m? (b) Find the intensity level in decibels at that distance. 118.8 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation Cary out all inter to...
An electronic point source emits sound isotropically at a frequency of 2 × 103 Hz and a power of 27 watts. A small microphone has an area of 0.77 cm2 and is located 175 meters from the point source. a: How many minutes will it take for the microphone to recieve 0.2 Joules from this sound? b: What is the sound intensity level at the microphone from this point source? c: What would be the sound intensity level at the...
An airplane traveling at half the speed of sound emits a sound of frequency 4.43 kHz. (a) At what frequency does a stationary listener hear the sound as the plane approaches? (b) At what frequency does a stationary listener hear the sound after the plane passes?
An airplane traveling at half the speed of sound emits a sound of frequency 5.00 Hz At what frequency does a stationary listener hear the sound A) as the plane approaches? B) After it passes?