[填空题]
The bolts on the cylinder head of an engine require tigva7 q.crsr8t9 1po/rfuz q 0w6htening to a torqur j nmv*h w;7f+8b/kmce of 38 mc+nvrb8;jm7* w /hfk $m \cdot N$ 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
