[填空题]
The bolts on the cylinder xqbep3fizf;2);2k p rd;5uk qhead of an engine require tightening to a torefej3cq(k,rkc (n*l8gbc q o1/ gmo. :que of 38 gg .8/kqmj k r*f c o(neb3le,c1o(cq:$m \cdot N$ 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
