Physics, 17.03.2020 18:16, mosleykimberly944
A small sphere of radius R is arranged to pulsate so that its radius varies in simple harmonic motion between a minimum of R-ΔR and a maximum of R+ΔR with frequency f. This produces sound waves in the surrounding air of density rho and bulk modulus B. a- Find the intensity of sound waves at the surface of the sphere. (The amplitude of oscillation of the sphere is the same as that of the air at the surface of the sphere.)b-Find the total acoustic power radiated by the spherec-At a distance d≫R from the center of the sphere, find the amplitude of the sound wave. d-At a distance d≫R from the center of the sphere, find the pressure amplitude of the sound wave. e-At a distance d≫R from the center of the sphere, find the intensity of the sound wave. Express your answer in terms of the variables R, x, f, and appropriate constants.
Answers: 1
Physics, 22.06.2019 06:00, dozsyerra
Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.
Answers: 1
Physics, 22.06.2019 06:20, lolweapon
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
Physics, 22.06.2019 13:00, Bbmonstr8279
What effects result when there is an impact between earth and an asteroid? check all that apply. a. massive flooding. b. extinction of many life forms. c.major earthquakes change in average global temperature. d. giant dust cloud
Answers: 3
A small sphere of radius R is arranged to pulsate so that its radius varies in simple harmonic motio...
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