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A 25 m chain is hanging from a tall building. The chain has a density of 3 kg/m. At the bottom of the chain is
A 25 m chain is hanging from a tall building. The chain has a density of 3 kg/m. At the bottom of the chain is a 120 kg bag of concrete. How much work does it take to wind up the chain and concrete to the top of the building? You must show all your work for full credit. If necessary, round your final answer to the nearest whole number and present your answer in a sentence! You may use a calculator to approximate any integrals you produce
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