Say we have a green light wave with a wavelength of 500 nm in the air. What would be the speed of this light wave? What would be the frequency of this light wave? If the peak value of the electric field in this wave is 1000 N/C, what is the peak value of the magnetic field? What would be the average intensity of this wave? If this wave shines directly down on a perfect absorber with a length of 20 cm and a width of 10 cm, how much energy will be given to the absorber in one minute?

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