[填空题]
The bolts on the cylinder head of an engine require tightev4f qs2sy- -dbning to 3yyzxo2 137 0 cfu:jgtqrqp1 ma torque of 38 27: 1cq3o 0zp3yj rm xtq1guyf$m \cdot N$ 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
