MadSci Network: Engineering |
Hi Nicole. How about just considering conservation of energy ? Rubbing your hands together takes energy from your muscles and turns it into heat. Rub your hands together and your arms get tired ! Anytime you move a force over a distance you do work. You can show the equivalence by rubbing wooden blocks together and noting that the temperature of the blocks increases too. And your arms get tired then as well.... My best shot, without introducing inter-molecular forces. Happy New Year. Steve
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