You are trying to lift a stack of books off the table the
you are trying to lift a stack of books off the table. the stack of books has a mass of 15 kg. what minimum upward force must you exert on the books if you want to lift the books off the table.
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100 g of a certain radioactive sample are sealed into a container after 10 years only 25 g remain what is the half life
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you are trying to lift a stack of books off the table the stack of books has a mass of 15 kg what minimum upward force
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a 9ft x 9ft ball mill is being used to grind 55 tph of slag for useas a filler material the size analysis of the feed
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