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A heat lamp emits mostly infrared radiation. Suppose the average wavelenth emmited by a heat lamp is 1500 nm and its power output in EM radiation is 200 W. Changing the values to this question ___ what is the correct answer? A heat lamp emits mostly infrared radiation. Suppose 25% (NOT half) of power emitted goes into the shoulder. Then what is the answer in the unit of second (s)?

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