Question: How many days does it take for a perfect blackbody cube (0.0100 m on a side, 30.0 C) to radiate the same amount of energy

How many days does it take for a perfect blackbody cube (0.0100 m on a side, 30.0 °C) to radiate the same amount of energy that a one-hundred-watt light bulb uses in one hour?

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