Homework Answers
intensity level B = 10*log(I/Io)
for B1 = 20 dB = 10*log(I1/Io)
for B2 = 80 dB = 10*log(I2/Io)
B2 - B1 = 80 - 20
10*log(I2/Io) - 10*log(I1/Io) = 60
10*log(I2/I1) = 60
I2/I1 = 10^6 = 1e6
========================
intensity level B = 10*log(I/Io)
for B1 = 70 dB = 10*log(I1/Io)
for B2 = 30 dB = 10*log(I2/Io)
B2 - B1 = 30 - 70
10*log(I2/Io) - 10*log(I1/Io) = -40
10*log(I2/I1) = -40
I2/I1 = 10^-4 = 1e-4
Add Answer to:
VOLUME OF SOUND IN DECIBELS (dB) If the sound volume increases from 20 dB to 100...
The Intensity, or loudness, of a sound can be measured decibels (dB), according to the equation...
The Intensity, or loudness, of a sound can be measured
decibels (dB), according to the equation where is the intensity of
a given sound and l 0 the threshold of hearing intensityWhat the
intensity, decibels, when r=10^ 0 \ l 0 rangle
[6] where / The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation (dB) - 10log is the intensity of a given sound and lo is the threshold of hearing intensity....
A certain sound level increases by an additional 20 dB. By how much does the intensity...
A certain sound level increases by an additional 20 dB. By how much does the intensity increase? The intensity increases by a factor of 200. The intensity increases by a factor of 100. The intensity increases by a factor of 20. The intensity increases by a factor of 2. The intensity does not increase.
Table 15.3 Sound intensity levels and intensities of common environmental sounds ReviewI Constants Periodic Table Sound...
Table 15.3 Sound intensity levels and intensities of common environmental sounds ReviewI Constants Periodic Table Sound β(dB) 1(W/m2) Threshold of Part A hearing 1.0 10-12 Person breathing, A whisper, atm 20 1.0x 1010 Classroom during Residential street, Quiet restaurant Normal Table 15.3 in the textbook gives an estimate for the sound intensity of a whisper at 1.0 m. What is the sound intensity of a whisper at a distance of 2.5 m, in W/m Express your answer in watts per...
To understand the decibel scale. The decibel scale is a logarithmic scale for measuring the sound...
To understand the decibel scale. The decibel scale is a logarithmic scale for measuring the sound intensity level. Because the decibel scale is logarithmic, it changes by an additive constant when the intensity as measured in W/m2 changes by a multiplicative factor. The number of decibels increases by 10 for a factor of 10 increase in intensity. The general formula for the sound intensity level, in decibels, corresponding to intensity I is β=10log(II0)dB, where I0 is a reference intensity. For...
a. How many decibels is a tone with pressu th pressure P = 0.027 b. How...
a. How many decibels is a tone with pressu th pressure P = 0.027 b. How many decibels is at wice Prerfi.e. P = 0.0004)? c. What is the pressure P of a 30 dB toner d. The threshold for pain is 150 dB. What is the ex tones (that are composed of many harmonics), corresponds to the pitch of the fundamental frequenc series). The set of harmonics can sound dB. What is the corresponding pressure P? re composed of...
2. [-13 Points) DETAILS LARCOLALG10 5.3.079. The relationship between the number of decibels 3 and the...
2. [-13 Points) DETAILS LARCOLALG10 5.3.079. The relationship between the number of decibels 3 and the intensity of a sound I (in watts per square meter) is B = 10 log = 10 100 10=12) Use the properties of logarithms to write the formula in simpler form. B = Determine the number of decibels of a sound with an intensity of 10 ** watt per square meter. dB Show My Work Aqua Mihatsteps of reasoning did you use? Your work...
please solve Calculate the IL dB level: 10-10watts/m2 20 dB 60 dB 50 dB 40 dB...
please solve
Calculate the IL dB level: 10-10watts/m2 20 dB 60 dB 50 dB 40 dB Question 9 Solve: [20Log(7/3]/3 2.45 3.69 3.62 2.32 < Previous use the best answer. You have 90 minutes. Please have ng math problems. Question 10 If you add a second sound of the same level, what 3 dB double the level 6 dB 1/2 the original level Previous Question 12 What is the dB SLP level for the following output level: 26 micropascals 2.28...
The graph shows the US Department of Labor noise regulation for working without ear protection. A...
The graph shows the US Department of Labor noise regulation for working without ear protection. A machinist is in an environment where the ambient sound level is of 85 dB, i.e., corresponding to the 8 Hours/day noise level. The machinist likes to listen to music, and plays a Boom Box at an average level of 82.0 dB 6 2 90 95 85 105 100 Sound Level (dB) Calculate the INCREASE in the sound level from the ambient work environment level...
d of pain 120 phons 120 100 80 100 0-4 E 10-8 1o-1e 20 50 100...
d of pain 120 phons 120 100 80 100 0-4 E 10-8 1o-1e 20 50 100 A 1000-Hla tone must have what sound løvel to seem as loud as a 200-H tone thar has a 40-4B sound lover? Express your answer using one significant figure. s a 40-dB sound level? dB Submit
LUULEED A Noisy Room (Ranking) Due this Friday, Oct 18 at 11:59 pm (EDT) You are...
LUULEED A Noisy Room (Ranking) Due this Friday, Oct 18 at 11:59 pm (EDT) You are standing in the middle of a large room listening to a cacaphony of sounds. Rank the intensity of the sounds from each source (1 loudest, 2 next loudest, ...) Consider al objects to be right next to you. If two values are within 0.1 dB from each other, consider them to be the same. An object emitting a sound with an intensity level of...
The Intensity, or loudness, of a sound can be measured
decibels (dB), according to the equation where is the intensity of
a given sound and l 0 the threshold of hearing intensityWhat the
intensity, decibels, when r=10^ 0 \ l 0 rangle
[6] where / The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation (dB) - 10log is the intensity of a given sound and lo is the threshold of hearing intensity....
A certain sound level increases by an additional 20 dB. By how much does the intensity increase? The intensity increases by a factor of 200. The intensity increases by a factor of 100. The intensity increases by a factor of 20. The intensity increases by a factor of 2. The intensity does not increase.
Table 15.3 Sound intensity levels and intensities of common environmental sounds ReviewI Constants Periodic Table Sound β(dB) 1(W/m2) Threshold of Part A hearing 1.0 10-12 Person breathing, A whisper, atm 20 1.0x 1010 Classroom during Residential street, Quiet restaurant Normal Table 15.3 in the textbook gives an estimate for the sound intensity of a whisper at 1.0 m. What is the sound intensity of a whisper at a distance of 2.5 m, in W/m Express your answer in watts per...
a. How many decibels is a tone with pressu th pressure P = 0.027 b. How many decibels is at wice Prerfi.e. P = 0.0004)? c. What is the pressure P of a 30 dB toner d. The threshold for pain is 150 dB. What is the ex tones (that are composed of many harmonics), corresponds to the pitch of the fundamental frequenc series). The set of harmonics can sound dB. What is the corresponding pressure P? re composed of...
2. [-13 Points) DETAILS LARCOLALG10 5.3.079. The relationship between the number of decibels 3 and the intensity of a sound I (in watts per square meter) is B = 10 log = 10 100 10=12) Use the properties of logarithms to write the formula in simpler form. B = Determine the number of decibels of a sound with an intensity of 10 ** watt per square meter. dB Show My Work Aqua Mihatsteps of reasoning did you use? Your work...
please solve
Calculate the IL dB level: 10-10watts/m2 20 dB 60 dB 50 dB 40 dB Question 9 Solve: [20Log(7/3]/3 2.45 3.69 3.62 2.32 < Previous use the best answer. You have 90 minutes. Please have ng math problems. Question 10 If you add a second sound of the same level, what 3 dB double the level 6 dB 1/2 the original level Previous Question 12 What is the dB SLP level for the following output level: 26 micropascals 2.28...
The graph shows the US Department of Labor noise regulation for working without ear protection. A machinist is in an environment where the ambient sound level is of 85 dB, i.e., corresponding to the 8 Hours/day noise level. The machinist likes to listen to music, and plays a Boom Box at an average level of 82.0 dB 6 2 90 95 85 105 100 Sound Level (dB) Calculate the INCREASE in the sound level from the ambient work environment level...
d of pain 120 phons 120 100 80 100 0-4 E 10-8 1o-1e 20 50 100 A 1000-Hla tone must have what sound løvel to seem as loud as a 200-H tone thar has a 40-4B sound lover? Express your answer using one significant figure. s a 40-dB sound level? dB Submit
LUULEED A Noisy Room (Ranking) Due this Friday, Oct 18 at 11:59 pm (EDT) You are standing in the middle of a large room listening to a cacaphony of sounds. Rank the intensity of the sounds from each source (1 loudest, 2 next loudest, ...) Consider al objects to be right next to you. If two values are within 0.1 dB from each other, consider them to be the same. An object emitting a sound with an intensity level of...
Most questions answered within 3 hours.
-
Identify and Describe the major sources of U.S law. Provide a
sport-related example of each.
asked 4 minutes ago -
NASA's Ames Research Center in Mountain View, California, houses
a 20g centrifuge used to conduct research...
asked 53 minutes ago -
I want a python code using recursion ONLY.
I cannot use any loops, dictionaries or modules....
asked 53 minutes ago -
Tobin Supplies Company expects sales next year to be $450,000.
Inventory and accounts receivable will increase...
asked 1 hour ago -
Give the relative rates for the following with a neighbor at your
desk
PH3(g) to P4(g)...
asked 1 hour ago -
Suppose Acap Corporation will pay a dividend of $2.87 per share
at the end of this...
asked 2 hours ago -
Scientists make earthquake forecasts using data from:
A.
geodesy
B.
seismology
C.
geology
D.
paleoseismology
E....
asked 2 hours ago -
Employee training can
be defined as planned organizational efforts to help employees
learn job-related knowledge, skills,...
asked 3 hours ago -
Which for loop is implemented correctly in Java?
Group of answer choices
for (i = 0...
asked 4 hours ago -
Required information
[The following information applies to the questions
displayed below.]
In 2019, Alliant Corporation acquired...
asked 4 hours ago -
How much must I invest today if I want to withdraw 1/3 of my
original investment...
asked 6 hours ago -
What is meant by a “term premium”?
What can explain such a premium? Is it a...
asked 8 hours ago