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The bolts on the cylinder head of an enginej0 , )ltyvncptwx6) +:pq-y0wfky0ili 6:o w/n ez+ vnz2az:e require tightening to a torque of 38 -z: vqe wkl:z0 iofzpnw:/yy +062 ani$m \cdot N$ If a wrench is 28 cm long, what force perpendicular to the wrench must the mechanic exert at its end? N If the six-sided bolt head is 15 mm in diameter, estimate the force applied near each of the six points by a socket wrench (Fig. 8–41). N