Homework Answers
1. If a sound of frequency 1000 Hz has intensity level 30 dB, what would be...
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
of the equal loudness...
Using a frequency-measuring lab device, I am to map out the sound intensity level distribution (dB)...
Using a frequency-measuring lab device, I am to map out the sound intensity level distribution (dB) in a room (both with & without music playing) to create a 5x5 grid of 25 data points. Using the following data table of sound intensity level β(dB) and corresponding intensity I(W/m2), I also need to find the intensity to the nearest order of magnitude for the points on my sound intensity level maps. Here is the data table: Intensity levelβ(dB) Intensity I(W/m2) Example/effect...
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...
please show all steps and calculations Determine the 1/1 Octave Band Sound Pressu Band Sound Pressure...
please show all steps and calculations
Determine the 1/1 Octave Band Sound Pressu Band Sound Pressure Levels (dB): Levels (dB) from the following 1/3 Octave Band Center Frequency (Hz) 63 100 Sound Pressure Level (dB) 87 97 87 89 80 76 160 200 250 74 400 75 74 79 80 630 800 1000 1250 1600 76 70 2500 4000 5000 57 53
8. -4 points SerPSE10 16.9 P041 My Notes Ask Your Teache A block with a speaker...
8. -4 points SerPSE10 16.9 P041 My Notes Ask Your Teache A block with a speaker bolted to it is connected to a spring having spring constant k 19.0 N/m and oscillates as showrn in the figure below. The total mass of the block and speaker is 6.00 kg, and the amplitude of this unit's motion is 0.500 m. The speaker emits sound waves of frequency 120 Hz. (a) Detemine the highest frequencles heard by the person to the right...
(MAS BR 1000 w 4000 w 30 Ri 40 R 2000 2000 (m) Figure Q4(a) Figure...
(MAS BR 1000 w 4000 w 30 Ri 40 R 2000 2000 (m) Figure Q4(a) Figure Q4(b) Calculate the average and the effective current is ) as indicated in Figure Q4 (a). (marks) (6) Based on the answer in Q4 (a), determine the effective current flows through Rs. (4 marks) Calculate the average power absorbed by Rs. (2 marks) If the input current is replaced with the sinusoidal wave having a peak-to-peak value of 160 mA and frequency of 1...
A hornet’s wings, a mere 5 mm long, buzz at 1000 Hz. At a distance of...
A hornet’s wings, a mere 5 mm long, buzz at 1000 Hz. At a distance of 4 m you hear a sound level of 10 db. (A) If the hornet does this by making the lowest possible standing waves on its wing, what is their wavelength? (explain) (B) What is the speed of the wave on the hornet wing? (C) What is the intensity level 8 m away?
NHVENNER 100 11. mmmm TRANSMETTANCES D 4000 3000 2000 1500 1000 SBO MAVENUMBER வாயANGIULUISH 1,3,5-trimethylbenzene propanoic...
NHVENNER 100 11. mmmm TRANSMETTANCES D 4000 3000 2000 1500 1000 SBO MAVENUMBER வாயANGIULUISH 1,3,5-trimethylbenzene propanoic anhydride 3-methyl-3-buten-1-ol isopropanol 4 propanenitrile hex-1-yne Ethyl propionate hexanoyl chloride butyramide oct-4-yne N,N-dimethylformamide cyclohexylamine wph Trease uo not include the ik spectra that are included There are 12 IR spectra included and 12 names of the corresponding molecules. In the boxes below, put the correct molecular structure and write out your justification (i.e. why does the IR indicate to you that the molecule you...
Help interpreting IR and percent yield for equation below in photo 50 4000 3500 3000 2500 2000 1750 1500 1250 1000 750 500 FTIR Measurement 70 Data1102 %T 50 30 500 400035003000 2500 2000 750 1500 250...
Help interpreting IR and
percent yield for equation below in photo
50 4000 3500 3000 2500 2000 1750 1500 1250 1000 750 500 FTIR Measurement 70 Data1102 %T 50 30 500 400035003000 2500 2000 750 1500 250 1000 750 cm- Comment FTIR Measurement Corr. Area 271.938 88.287 Base (L)Area Peak tensityCorr. IntensityBase (H 94.37 1004.91 1047.35 1738.726 1750.587 1345.255 2866.075 2566.219 4262.130 972.906 736.81 1047.35 1080.14 1143.79 1207.44 1305.81 1328.95 1379.10 16.9 8.06 5.89 12.70 1 715.59 48.4 52.80 54.20...
12. 100 TIBETTENCERE D 4000 3000 2000 ISO 1000 RAVENUISERI- வாயANGIULUISH 1,3,5-trimethylbenzene propanoic anhydride 3-methyl-3-buten-1-ol isopropanol...
12. 100 TIBETTENCERE D 4000 3000 2000 ISO 1000 RAVENUISERI- வாயANGIULUISH 1,3,5-trimethylbenzene propanoic anhydride 3-methyl-3-buten-1-ol isopropanol 4 propanenitrile hex-1-yne Ethyl propionate hexanoyl chloride butyramide oct-4-yne N,N-dimethylformamide cyclohexylamine wph Trease uo not include the ik spectra that are included There are 12 IR spectra included and 12 names of the corresponding molecules. In the boxes below, put the correct molecular structure and write out your justification (i.e. why does the IR indicate to you that the molecule you picked is correct?)...
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
of the equal loudness...
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...
please show all steps and calculations
Determine the 1/1 Octave Band Sound Pressu Band Sound Pressure Levels (dB): Levels (dB) from the following 1/3 Octave Band Center Frequency (Hz) 63 100 Sound Pressure Level (dB) 87 97 87 89 80 76 160 200 250 74 400 75 74 79 80 630 800 1000 1250 1600 76 70 2500 4000 5000 57 53
8. -4 points SerPSE10 16.9 P041 My Notes Ask Your Teache A block with a speaker bolted to it is connected to a spring having spring constant k 19.0 N/m and oscillates as showrn in the figure below. The total mass of the block and speaker is 6.00 kg, and the amplitude of this unit's motion is 0.500 m. The speaker emits sound waves of frequency 120 Hz. (a) Detemine the highest frequencles heard by the person to the right...
(MAS BR 1000 w 4000 w 30 Ri 40 R 2000 2000 (m) Figure Q4(a) Figure Q4(b) Calculate the average and the effective current is ) as indicated in Figure Q4 (a). (marks) (6) Based on the answer in Q4 (a), determine the effective current flows through Rs. (4 marks) Calculate the average power absorbed by Rs. (2 marks) If the input current is replaced with the sinusoidal wave having a peak-to-peak value of 160 mA and frequency of 1...
NHVENNER 100 11. mmmm TRANSMETTANCES D 4000 3000 2000 1500 1000 SBO MAVENUMBER வாயANGIULUISH 1,3,5-trimethylbenzene propanoic anhydride 3-methyl-3-buten-1-ol isopropanol 4 propanenitrile hex-1-yne Ethyl propionate hexanoyl chloride butyramide oct-4-yne N,N-dimethylformamide cyclohexylamine wph Trease uo not include the ik spectra that are included There are 12 IR spectra included and 12 names of the corresponding molecules. In the boxes below, put the correct molecular structure and write out your justification (i.e. why does the IR indicate to you that the molecule you...
Help interpreting IR and
percent yield for equation below in photo
50 4000 3500 3000 2500 2000 1750 1500 1250 1000 750 500 FTIR Measurement 70 Data1102 %T 50 30 500 400035003000 2500 2000 750 1500 250 1000 750 cm- Comment FTIR Measurement Corr. Area 271.938 88.287 Base (L)Area Peak tensityCorr. IntensityBase (H 94.37 1004.91 1047.35 1738.726 1750.587 1345.255 2866.075 2566.219 4262.130 972.906 736.81 1047.35 1080.14 1143.79 1207.44 1305.81 1328.95 1379.10 16.9 8.06 5.89 12.70 1 715.59 48.4 52.80 54.20...
12. 100 TIBETTENCERE D 4000 3000 2000 ISO 1000 RAVENUISERI- வாயANGIULUISH 1,3,5-trimethylbenzene propanoic anhydride 3-methyl-3-buten-1-ol isopropanol 4 propanenitrile hex-1-yne Ethyl propionate hexanoyl chloride butyramide oct-4-yne N,N-dimethylformamide cyclohexylamine wph Trease uo not include the ik spectra that are included There are 12 IR spectra included and 12 names of the corresponding molecules. In the boxes below, put the correct molecular structure and write out your justification (i.e. why does the IR indicate to you that the molecule you picked is correct?)...
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