A spotlight shines onto a square target of area 0.35 m2. 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 but don't include the units.)

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 keep in mind this a general physics course so use appropriate formula.

 

A spotlight shines onto a square target of area 0.35 m2. If the average (rms) strength of the magnetic field in the EM waves of the spotlight is 1.2 x 10- T, calculate the energy transferred to the target if it
remains in the light for 12 minutes.
(Give your answer in joules but don't include the units.)
QUESTION 5
The distance between Planet X and a star is 1.8 x 1011 m. At the surface of Planet X, the average intensity of the radiation from the star is 13440 W/m2. If the star radiates isotropically, which of the following
is the average power of the star?
9.69 x 1026 w
4.95 x 1028 w
7.64 x 1024 w
5.47 x 1027 w
Transcribed Image Text:A spotlight shines onto a square target of area 0.35 m2. If the average (rms) strength of the magnetic field in the EM waves of the spotlight is 1.2 x 10- T, calculate the energy transferred to the target if it remains in the light for 12 minutes. (Give your answer in joules but don't include the units.) QUESTION 5 The distance between Planet X and a star is 1.8 x 1011 m. At the surface of Planet X, the average intensity of the radiation from the star is 13440 W/m2. If the star radiates isotropically, which of the following is the average power of the star? 9.69 x 1026 w 4.95 x 1028 w 7.64 x 1024 w 5.47 x 1027 w
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