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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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 alt="4. A spotlight shines onto a square target of area 0.35 m?. If the average (rms) strength
of the magnetic field in the EM waves of the spotlight is 1.2 x 10-7 T, calculate the
energy transferred to the target if it remains in the light for 12 minutes.
(Give your answer in joules)
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Transcribed Image Text:4. A spotlight shines onto a square target of area 0.35 m?. If the average (rms) strength
of the magnetic field in the EM waves of the spotlight is 1.2 x 10-7 T, calculate the
energy transferred to the target if it remains in the light for 12 minutes.
(Give your answer in joules)
MacBook/Air
80
F8
%23
$4
%
&
2
4.
5
6
8.
R
T
Y
%# 3
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- 3. On a cloudless day, the sunlight that reaches the surface of the earth has an intensity of about 1.50 x 103 W/m². What is the electromagnetic energy contained in 5.10 m3 of space just above the earth's surface?arrow_forward(11%) Problem 1: Consider an electromagnetic wave where the electric field of an electromagnetic wave is oscillating along the z-axis and the magnetic field is oscillating along the x-axis. 8 In what directions is it possible that the wave is traveling? (Select all that apply) OThe -z dırection. Grade Su OThe -y direction. OThe -x direction. OThe +z direction. V The +y direction. Deduction OThe +x direction. Potential Submissic Attemptsarrow_forwardAn EM wave has a magnetic field strength of 5.00×10^−4 [T]. What is its electric field strength when travelling in a medium with n=1.50? A. 1.00×10^5[V/m] B. 1.50×10^5[V/m] C. 3.00×10^11[V/m] D. 6.00×10^11[V/m]arrow_forward
- 4. What is the intensity of an electromagnetic wave with a peak electric field strength of 110 V/m? This is not and will not be gradedarrow_forwardIf the magnetic field in a particular pulse has a magnitude of 1 x 105 tesla (comparable to the Earth's magnetic field), what is the magnitude of the associated electric field? V/marrow_forward4. A spotlight shines onto a square target of area 0.35 m?. If the average rms strength of the magnetic field in the EM waves of the spotlight is 1.2 x 107 T, calculate the energy transferred to the target if it remains in the light for 12 minutes. (Give answer in joules) F3 FB #3 2$ 4 & * 2 3 5 8 9 W E T U Karrow_forward
- 9: Please help answer this ASAParrow_forwardAn electromagnetic wave is allowed to reflect from a mirror in a measurement of radiation pressure. If Erms is doubled while the wave frequency is cut in half, then the radiation pressure will a. remain the same. b. quadruple. c. double. d. be cut in half.arrow_forward#3: A certain 60.0 Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 13.0 kV/m. A) what is the wavelength of this very low frequency EM wave? B) What is its maximum magnetic field strength?arrow_forward
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