[填空题]
The bolts on the cylinder head of an engin gbj x;so9 964o(zqknae require tighteningw;wsn)n3pqv a ;vrmy3qudwx 8 1e)-q 8 to a torque of 38w1;v; )uwnxndsr - m38y)eqwqv8aq 3 p $m \cdot N$ 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
