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3.       An average active person consumes about 2500 Cal (1 Cal =1000 cal) per day. (a) What...

3.       An average active person consumes about 2500 Cal (1 Cal =1000 cal) per day.

(a) What is this in joules?

(b) What is this in kilowatt-hours?

(c) If your power company charges about 30 ¢ per kilowatt-hour, how much would your energy cost per day if you bought it from the power company?  Just for fun… Do you think you could you feed yourself (adequately) on this much money per day?

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