Sound from source 3 has a sound intensity level that is 8.3 dB less than sound...
Sound from source 3 has a sound intensity level that is 8.3 dB less than sound from source 1. By what factor is the sound intensity from source 3 less intense than the sound intensity from source 1? (Assume the sound intensities for sources 1 and 3 are I1 and I3, respectively.)
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Sound from source 3 has a sound intensity level that is 8.3 dB
less than sound...
1. -/15.4 points My Notes (a) By what factor is one sound more intense than another...
1. -/15.4 points My Notes (a) By what factor is one sound more intense than another if the sound has a level 11.0 dB higher than the other? (b) If one sound has a level 32.0 dB less than another, what is the ratio of their intensities? 2. - 17.7 points My Notes If the first sound has a level 19.0 dB lower than the second, what is the ratio of their intensities? first intensity second intensity
5. A sound source has an intensity I1 and when its sound level is measured at...
5. A sound source has an intensity I1 and when its sound level is measured at a fixed distance the found value is 70 dB. The source increases its intensity to I2 and when its sound level is measured at the same distance the found value is 96 dB. What is the I2 / I1 ratio?
5. By how many decibels do you reduce the sound intensity level due to a source...
5. By how many decibels do you reduce the sound intensity level due to a source of sound if you double your distance from it? Assume that the waves expand spherically. dB 6. The sound in a classroom is 63000 times as intense as the minimum threshold of hearing. What is the intensity level of this sound in decibels? dB
• The sound level intensity is found to be 60 dB at some location. If the...
• The sound level intensity is found to be 60 dB at some location. If the power of the source increases by a factor of 4, by what percent will the dB level change?
Two observation points are located at distances r_1 and r_2 from a source of sound. The...
Two observation points are located at distances r_1 and r_2 from a source of sound. The sound spreads out uniformly from the source, and there are no reflecting surfaces in the environment. The sound intensity level at distance r_2, is 6 dB less than the level at distance r_1. (a) What is the ratio I_2/I_1, of the sound intensities at the two distances? (b) What is the ratio r_2/r_1 of the distances?
A) What is the intensity (in W/m2) of a sound that has a level 3.00 dB...
A) What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 4.15 ✕ 10−9 W/m2 sound? B) what is the intensity in W/m2 of a sound that is 10.0 dB higher than a 4.15 x10-9 wW/m2 sound?
audio system 1 produce an intensity level of B=90.0dB, and system 2 produces an intensity level...
audio system 1 produce an intensity level of B=90.0dB, and
system 2 produces an intensity level of B=93.0 dB. the
corresponding intensities (in W/m2) are I1 and I2. Determine the
ratio I1/I2
PHY 206/206L Term: Spring 2020 Name: Due Date: 02/10/2020 HW10 (1401-3) Comparing Sound Intensities (10 pts) Audio system i produce an intensity level of B =90.0 dB, and system 2 produces an intensity level of 8 = 93.0 dB. The corresponding intensities (in W/m?)arel, and 12. Determine the...
What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower...
What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 2.42 ✕ 10−9 W/m2 sound? W/m2 (b)What is the intensity (in W/m2) of a sound that is 10.0 dB higher than a 2.42 ✕ 10−9 W/m2 sound? W/m2
You measure the sound intensity level as 70.5 dB at a location that is 4.31 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?
Sound 1 has an intensity of 39.0 W/m². Sound 2 has an intensity level that is...
Sound 1 has an intensity of 39.0 W/m². Sound 2 has an intensity level that is 2.4 dB greater than the intensity level of sound 1. Part A What is the intensity of sound 2?
1. -/15.4 points My Notes (a) By what factor is one sound more intense than another if the sound has a level 11.0 dB higher than the other? (b) If one sound has a level 32.0 dB less than another, what is the ratio of their intensities? 2. - 17.7 points My Notes If the first sound has a level 19.0 dB lower than the second, what is the ratio of their intensities? first intensity second intensity
Two observation points are located at distances r_1 and r_2 from a source of sound. The sound spreads out uniformly from the source, and there are no reflecting surfaces in the environment. The sound intensity level at distance r_2, is 6 dB less than the level at distance r_1. (a) What is the ratio I_2/I_1, of the sound intensities at the two distances? (b) What is the ratio r_2/r_1 of the distances?
audio system 1 produce an intensity level of B=90.0dB, and
system 2 produces an intensity level of B=93.0 dB. the
corresponding intensities (in W/m2) are I1 and I2. Determine the
ratio I1/I2
PHY 206/206L Term: Spring 2020 Name: Due Date: 02/10/2020 HW10 (1401-3) Comparing Sound Intensities (10 pts) Audio system i produce an intensity level of B =90.0 dB, and system 2 produces an intensity level of 8 = 93.0 dB. The corresponding intensities (in W/m?)arel, and 12. Determine the...
Sound 1 has an intensity of 39.0 W/m². Sound 2 has an intensity level that is 2.4 dB greater than the intensity level of sound 1. Part A What is the intensity of sound 2?
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