Physics, 09.04.2020 00:30 suzyleonardsl0
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: 3
Physics, 22.06.2019 10:00
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
Physics, 22.06.2019 18:30
Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?
Answers: 1
Physics, 22.06.2019 20:40
Newtons view of arrangement of the universe. don't copy from anywhere.
Answers: 3
A small sphere of radius R is arranged to pulsate so that its radius varies in simple harmonic motio...
Social Studies, 27.09.2019 17:50
Geography, 27.09.2019 17:50
Mathematics, 27.09.2019 18:00
History, 27.09.2019 18:00
History, 27.09.2019 18:00
History, 27.09.2019 18:00
Geography, 27.09.2019 18:00
Mathematics, 27.09.2019 18:00
English, 27.09.2019 18:00
English, 27.09.2019 18:00
Advanced Placement (AP), 27.09.2019 18:00