"It's the weight factor, " said Louis Scala, the local government's construction official in North Bergen, N . J . " Every square foot of roofing you put on can weigh as much as 40 pounds ."
22.
Where R _ i is the equation residual at an element vertex i, Q is the conservation equation expressed on an element basis, W _ i is the weight factor, and V ^ { e } is the volume of the element.
23.
These cars, many street-driven to the strip and then ( with good fortune ) back home after the race, were grouped in fast-to-slow alphabetical classes ( A / S, B / S, C / S, etc . ) determined by horsepower-to-weight factors in wide ranges.