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Afood refrigerator is to provide a 15,000 kj/h cooling effect while rejecting 22,000 kj/h of heat. calculate the cop of this refrigerator.
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If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?
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How would a small bar magnet be oriented when placed at position x?
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If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
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Does heating a metal wire increase or decrease its electrical resistance? why?
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Afood refrigerator is to provide a 15,000 kj/h cooling effect while rejecting 22,000 kj/h of heat. c...
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