Arock band playing an outdoor concert produces sound at 120db 5.0m away from their single working loudspeaker. a.)what is the intensity (i) 5 m from the loudspeaker? b.) what is the power produced by the loud speaker? c.) what is the intensity (i) 35 m from the speaker? d.) what is the sound intensity level 35m from the speaker?
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Physics, 22.06.2019 14:30, gus2006santos
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Physics, 22.06.2019 17:20, Tiredd7838
The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b. b. at twice the distance, the magnitude of the field is 2b. c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.
Answers: 3
Arock band playing an outdoor concert produces sound at 120db 5.0m away from their single working lo...
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