Physics, 30.07.2021 02:50 lightning1157blaze
We can reasonably model a 75 W incandescent lightbulb as a sphere 7.0 cm in diameter. Typically, only about 5.0 % of the energy goes to visible light; the rest goes largely to nonvisible infrared radiation.
Required:
a. What is the visible light intensity (in W/m^2) at the surface of the bulb?
b. What are the amplitudes of the electric and magnetic fields at this surface, for a sinusoidal wave with this intensity?
Answers: 1
Physics, 22.06.2019 10:10, sadie960
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
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