Page 34 - 0 English Edition, the Book with Ch. 46 Added..docx

F/A = E dL/L

F/(dL/L) = E
The larger dL/L is, the smaller E is.
What Represents E is stiffness Stiffness. Not Elasticity or

ductility.

6.22 physical formula
Each physical science formula only considers or includes

discovered factors and does not include factors that have not yet
been discovered.