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.
Going off of the $90.00 price for a twenty-five pound cylinder we can find the cost per pound relatively easy. $90.00 divided by twenty-five pounds equals out to $3.60 per pound of refrigerant. Now I have seen multiple air conditioning repair companies quote upwards to $60.00 a pound on R410A.