17 of 21 What is the ratio of the intensities (12:11) of two sounds with intensity...
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...
please break it down step by step I'm really confused for
question 4 and 2 b
1. Find the intensity level of sound with the following intensities: a) 6.84 x 10-6 W/m2 b) 45.6 x 10-14W/m2 2. Find the intensity corresponding to the following: a)-18.0 dB b) 118 dB 3. Two sounds differ in intensity levels by 105 dB. What is the ratio of the intensities of the two sounds? What sound intensity level is produced when 3 identical loudspeakers...
both questions
21. What is the relative change in intensities if the difference in the signals - is (a) 10 dB (b) -3 dB (c) 5 dB 22. A wave's intensity is 50 W/cn. There is a change of +10 dB. What is the final intensity?
What is absorptivity? Select one: 0 a. the ratio of intensities of initial intensity of light to the amounf of light absorbed O b. a constant that is a characteristic of the absorbing solute O c. the amount of light absorbed by 1 M of the absorbing solute O d. The intensity of light that was absorbed.
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...
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...
PHYSICS QUESTION :P make your answer in dB The intensity levels of two people's speech are 61.5 dB and 65.5 dB, respectively. What is the intensity level of the combined sounds?
Two sinusoidal waves of the same frequency and wave velocity, with intensities in the ratio 9:1, are superimposed in some region of space. The ratio of the maximum possible intensity to the minimum possible intensity of the resulting wave is?
7. (10 points) Given three pure tones with the following frequencies and intensity levels: 100 Hz at 60 d8, 500 Hz at 70 dB, and 1000 Hz at 80 dB. (a) Compute the total loudness in sones of these three pure tones. (b) what is the combined intensity level of the three, and (c) Find the intensity level of a single 2000-Hz pure tone which has the same loudness as all the three pure tones combined
7. (10 points) Given...
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...