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21Three blocks A, B, and C and a grooved block D have dimensions a, b, c, and d asfollows: a = 1.500 ± 0.001 inb = 2.000 + 0.003 in C = 3.000 + 0.004 ind = 6.520 + 0.010 in

(a)Determine the mean gap w and its tolerance. (b) Determine the mean size of d that will assure that w 2 0.010 in.

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