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Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).
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What is the relationship between wavelength of light and the quantity of energy per photon?
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A chemical reaction [can/cannot] change an element into another element....
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