[填空题]
The bolts on the cylinder head of an engineyi .:ze6tm 9tr require tighte,i. tf2eeu398+4krojrk wb3(zfsji tning to a torque of 38 4je+ . r3ojstfei,3fz9t(r wkb k82ui $m \cdot N$ 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
