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.
You can find a 5 HP model for about $1,500 to $2,000, compared to $2,500 or more for a rotary screw model with the same horsepower. Compressors with 10 HP are priced similarly whether they are reciprocating or rotary screw models-about $4,000 to $6,000.ut the price gap is narrowing as rotary screw models have become more popular. Low-power models designed for business use begin at around $2,500. That will buy you around 5 HP. If youâre looking for 10 HP, budget about $4,000 to $6,000.