Willing to back financially an inventor
Would you be willing to back financially an inventor who is marketing a device that she claims takes in 25000J of heat at 600K, expels heat at 300K, and does 12000J of work? Explain.
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If 500 J of work are required to carry a 40 C charge from one point to another, the potential difference between these two points is:
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Double stranded DNA molecule negatively charged with a charge density of -e per nanometer 1. what is the electric field due a DNA molecule at a distance of 10 nm?
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