You sit a short distance from your speaker system, and the sound level is 21.6 dB...
You are sitting a distance of 14:0 m from a small speaker which is playing music. The sound level at your location is 55:0 dB. Assuming that the waves emitted are approximately spherical, how far from the speaker should you sit if you want the sound level to be 8:00 dB?
The sound level at a distance 3.00 m away from a source is 120 dB. At what distance will the sound level decrease to 100 dB?
An audio system 1 produces a sound level of 90.0 dB and system 2 produces a sound level of 93.0 dB. (a) Determine the ratio of the intensities (in W/m2). (b) Suppose a recording device was placed 2 m away from system 2. How far away from system 1 must that recording device be placed in order for the intensity to be the same as it was near system 2?
A.Determine the sound level heard by the guitarist when one speaker is operating .Units dB B.Determine the sound level heard by the guitanist when both speakers are operating .Units dB A. The frequency of the signal as determined by the motor vehicle .Units MHz B.The frequency determined by the radar speed gun for the signal reflected back to it by the motor vehicle .Units :Hz Two identical speakers are positioned the same distagce from a guitarist. The intensity of sound...
1)The sound level at a distance of 1.82 m from a source is 146 dB. At what distance will the sound level be 50.7 dB? Answer in units of m. 2)At what distance will the sound level be 7.22 dB? Answer in units of m.
You measure the sound intensity level as 70.5 dB at a location that is 4.31 m from a localized sound source. How far away from the source must you be for the intensity level to fall to 60.5 dB?
. At your apartment, you hear the busy road (the dB level of a freeway is 80 dB from 1.00 m away) and measure the noise at a constant level of 45 dB. a) What is the power output of traffic on the road? b) How far away is your house from the road? c) How far from the road would you need to be for the sound to measure at 20 dB? d) Town Hall is planning to add...
3. A trumpet creates a sound intensity level of 1.15*102 dB at a distance of 1.00 m. I. What is the sound intensity of a trumpet at this distance? II. What is the sound intensity of five trumpets at this distance? III. Find the sound intensity of five trumpets at the location of the first row of an audience, 8.00 m away, assuming, for simplicity, the sound energy propagates uniformly in all directions. IV. Calculate the decibel level of the...
if you are sitting 8.20 m from a 70.0 W speaker, what is the sound level in dB?
At your house, you hear the busy freeway (the dB level of a freeway is 80 dB from 1.00 m away) and measure the noise at a constant level of 45 dB. A. What is the power output of traffic on the freeway? B. How far away is your house from the freeway? C. How far from the freeway would you need to be for the sound to measure at 20 dB? D. Town Hall is planning to add panels...