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OpenStudy (anonymous):
consider a rod which stretches from x=-2 to x=2, along a ruler laid out in feet. suppose that its density at coordinate x is d(x)=1+2x+3x^2 kg/ft. Find mass, moment, and center of mass for the bar?
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OpenStudy (anonymous):
i believe mass is (int) 1+2x+3x^2 from -2 to 2?
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