Physics help needed to solve a problem on density

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A rod of length 30.0 cm has linear density (mass per length) given by λ = 50.0 + 20.0x where x is the distance from one end, measured in meters, and λ is in grams / meter. (a) What is the mass of the rod? (b) How far from the x = 0 end is its center of mass?

Nov 1st, 2015

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Nov 1st, 2015

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Nov 1st, 2015
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