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A student lifts a box of books that weighs 350 N. The box is lifted 4.0 m. How much work does the student do on the box?
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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How many grams of mgbr2 are needed to produce 75g or metal?
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A student lifts a box of books that weighs 350 N. The box is lifted 4.0 m. How much work does the st...
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