A rod extending between x = 0 and x= 16 cm has a uniform cross-sectional area A = 12.00 cm². Its density increases steadily between its ends from 2.50 g/cm² to 20.4 g/em?. (a) Identify the constants B and C required in the expression p =B+Cx to describe the variable density. Compute the S° A(B +Cx)dx 16 mass of the rod given by m =

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