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A loud speaker emits energy
A loud speaker emits energy in all directions at a rate of 2.75 J/s . What is the intensity level at a distance of 25 m?
2 answers
asked by
Anisha
723 views
An audio speaker at a concert emits sound uniformly in all directions at a rate
of 100 W. (i) Calculate the sound intensity
2 answers
asked by
amy
2,400 views
A radioisotope spontaneously emits charged particles and energy.
Which is not a characteristic of a radioisotope? It is
1 answer
55 views
Which colored light bulb, red, orange, yellow, green, or blue, emits photons with the least energy? Explain.
(b) Which emits
1 answer
asked by
Mary
942 views
A person is initially 8 m from a point sound source which emits energy uniformly in all direction at a constant rate. If the
4 answers
asked by
Ariana
2,015 views
A loud speaker at a rock concert generates 102 W/m2 at 20m with a frequency of 1
kHz. Assume that the speaker spreads its
0 answers
asked by
nizar
585 views
Wavelength in a Closed Column
Here is the prompt: We place a speaker near the top of a drinking glass. The speaker emits sound
0 answers
asked by
David
648 views
The Sun emits its maximum energy in the visible portion of the spectrum, while Earth emits most of its radiation as long wave
1 answer
100 views
A concert loudspeaker suspended high above the ground emits 35 W of sound power. A small
microphone with a 1.0 cm2 area is 50 m
1 answer
62 views
A concert loudspeaker suspended high off the ground emits 35 W of sound power. A small
microphone with a 1.0 cm2 area is 50 m
1 answer
asked by
Tyler
3,196 views