6. A rescue cable attached to a helicopter weighs 2 lb/ft. A 180 lb man grabs the end of the rope and is pulled from the surface of the ocean into the helicopter. How much work is done lifting the man if the helicopter is 30 ft above the ocean surface?

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Q: Suppose 16 ft of copper tubing costs $27.04. Find its unit cost (cost per foot)

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Q: 21. Find the weight of the heaviest circular cylinder can be cut from a 16-lb shot.

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Q: At average rates, how long would it take to completely remove 15 cm of soil? 8.

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Q: 9. Find the work done by lifting a 20 ft rope that weighs 3 lbs per foot to the top of a cliff if…

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