What is the sound intensity level in the air near a jackhammer when the sound intensity level is 105 dB ?
Reference sound intensity Io = 10−12 W/m² (Threshold of hearing).
Sound intensity I = Io×10^(LI/10) W/m² = 10^−12×10^(105/10) W/m² = 0.0316 W/m².
What is the sound intensity level in the air near a jackhammer when the sound intensity...
What is the sound intensity level (in units of dB) when the intensity of sound is 5.05 mW/m2?
When one person shouts at a football game, the sound intensity level at the center of the field is 64.9 dB. When all the people shout together, the intensity level increases to 105 dB. Assuming that each person generates the same sound intensity at the center of the field, how many people are at the game?
Question 13 What is the sound intensity level (in units of dB) when the intensity of sound is 5.78 mW/m2?
What is the sound intensity level B, in deabels, of a sound wave whose intensity is 10 times the relerence intensity e I Express the sound intensity namerically to the nearest integer 101)? Review 1 Constants1 Periodic Tabla View Available Hints) Learning Goal: To understand the decbel scale The decbel scale is a logaithmic scalo for measuring the sound intonsity level Because the decibel scale is ogarithmic, it changes by an additive constant when the intensity as measurod in W/m...
A sound wave has an intensity level of 123.5 dB in air. The density of air at 20.0°C is ρ = 1.20 kg/m3. The speed of sound in air at 20.0°C is v = 343 m/s What is the pressure amplitude of the wave? in N/m2
(b) What intensity level of the horn's sound is dB him and 476 Hz when the train is receding from him. Using these frequendies, he calculates the speed of the train. What value does he find? (Assume the speed of sound in air is 343 89
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?
By what factor must the sound intensity be increased to increase the sound intensity level by 13.4 DB?
What is the sound intensity level of a sound with an intensity of 2.4×10−6 W/m2 ? In dB
A plane wave at 2,000 Hz has a sound intensity level of 75 dB. What is Prms in Pa? d. 3.6x10 5.1x10-1 f. None of the above a. 3.6x10-2 b. 1.1x10-1 c. 2.3x10-1 e. 0. A plane wave at 1,050 Hz in air at room temperature has a sound intensity level of 60 dB. What is the wavelength in ft? a. 0.27 b. 0.33 d. 0.90 1.07 e. c. 0.78 f. None of the above
A plane wave at 2,000...