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Scientist develop a new heat lamp to keep chicks warm in an incubator. It has a conversion efficiency of 6.5% of its input to radiant energy. If it operates at a temperature of 871 K and has filament surface area of 0.0033 m2, how much radiant power does it output? Stephan-Botlzmann constant = 5.67E(-8) (J/s m^2 K).

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