Mathematics, 14.02.2020 04:24 Yskdl

A librarian lifts a 2.2 kg book from the floor to a height of 1.25 m. She carries the book 7 meters to the stacks and places the book on a shelf that is 0.35m above the floor. How much work does she do on the book?

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A librarian lifts a 2.2 kg book from the floor to a height of 1.25 m. She carries the book 7 meters...