[填空题]
The bolts on the cylindzltx nydok;-0)uzhzb :q,+b. er head of an engine requird :)h*3e fdg;htoxmb 9e tightening to a torque of 38 m :hfg3*;)btxh e ddo9$m \cdot N$ 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
