[填空题]
The bolts on the cylinde.k l93fqim,x nq x(u1hr head of an engine requireu;6hpjy,hao ms65jq( tightening to a torque of 38 6p(5;aj6sjmuo, hqh y$m \cdot N$ 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