A bolt joints shown in fig. The number of bolts Z=2, the bolt the number of bolts z=2 largest of diameter d=16mm, the minor diameter d1=13.84mm, Allowable stress [€] = 100MPa, friction coefficient f=0.1, anti-slip reliability coefficient Kc= 1.2, calculate the maximum load R of the bolt joints.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?