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Home Q & A Board Science-Related Homework Help Physics
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Juicebar Juicebar
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10 years ago
    The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/m2.  The maximum value of the magnetic field in the wave is closest to:
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wrote...
#1
10 years ago
Similar Question
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 749 mW/m2. The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. The total energy that traverses the area in a time interval of one minute is closest to:
170 J
130 J
270 J
200 J
240 J

Answer:

The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 749 mW/m2. The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. The total energy that traverses the area in a time interval of one minute is closest to:

270 J

Hope this provides some insight!
wrote...
#2
10 years ago
Use this formula.
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