The stress across a surface element (yellow disk) is the force that the material on one side (top ball) exerts on the material on the other side (bottom ball), divided by the area of the surface.
Overview. The WR450F retails for $8,290, making it the sixth-most expensive 450cc 4-stroke enduro bike of 2013. It comes equipped with a 449cc engine, which is slightly larger than average for a 4-stroke motor.he WR450F retails for $8,290, making it the sixth-most expensive 450cc 4-stroke enduro bike of 2013.
2015 Infiniti QX60 Summary. The 2015 Infiniti QX60 is a 4-door, 7-seat Sport Utility, available in 2 trims, ranging from the FWD to the AWD. Upon introduction, the $42,400 FWD is equipped with a standard 3.5L, 6-cylinder, engine that achieves 21-mpg in the city and 27-mpg on the highway.