[填空题]
The bolts on the cylinder head of an engine require tighteiwvl8) ) tqqw3ning to a torque i jcwy0o2 1m)tf8*bkbvr0yx0 of 38 )r 2i1m8yx0bf bwvo0 jkct0 *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
Post time 2025-2-18 20:00:22
