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Physics, 17.07.2019 01:00 genyjoannerubiera
An incandescent bulb produces 520 lumens and has an efficacy of 13 lm/w. what is the power of the bulb? 2.5 w 40 w 503 w 533 w
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An incandescent bulb produces 520 lumens and has an efficacy of 13 lm/w. what is the power of the bu...
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