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The accompanying photo shows a pipevine swallowtail caterpillar climbing up a twig.
(a) As the caterpillar climbs, its potential energy is increasing. What source of energy has been used to effect this change in potential energy?
(b) If the caterpillar is the system, can you predict the sign of q as the caterpillar climbs?
(c) Does the caterpillar do work in climbing the twig? Explain.
(d) Does the amount of work done in climbing a 12-inch section of the twig depend on the speed of the caterpillar's climb?
(e) Does the change in potential energy depend on the caterpillar's speed of climb?
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Car manufacturers are developing engines that use H2 as fuel. In locations where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
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the coinage metals-copper silver and gold-crystallize in a face center cubic structure. use the density of copper of
How many grams of sulfur (S) are needed to react completely with 461 g of mercury (Hg) to form HgS?
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