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English, 27.08.2019 18:00, LanaParrilla

John puts out 100 foot-pounds of energy dragging a box up an incline. friction uses 20 foot-pounds of that energy. he gets only 80 foot-pounds of energy for his effort. solve for its efficiency? declarative procedural

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John puts out 100 foot-pounds of energy dragging a box up an incline. friction uses 20 foot-pounds o...

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