Mass of two bars Two bars of length L have densities r11x2

Chapter 6, Problem 50

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Mass of two bars Two bars of length L have densities r11x2 = 4e-x and r21x2 = 6e-2x, for 0 x L. a. For what values of L is bar 1 heavier than bar 2? b. As the lengths of the bars increase, do their masses increase without bound? Explain.

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