[填空题]
The bolts on the cylin e4m 1qysq:sohay0ip9il9s0vfgq7u9y, , oc7der headg d 8a oc2h9-.kb1vygt of an engine require tightening to a torque of 38y-t.b1gvdc9o2gha8 k $m \cdot N$ 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
