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Forces that don't obey linear superposition



Martha,

Consider the H2O molecule the bonding forces have an angular
dependence......not present with HO.....

Also, the forces in crystals have nonlinear terms....

Mark

Dr. Mark H. Shapiro
Physics Department
California State University, Fullerton
P.O. Box 6866
Fullerton, California 92834-6866

Phone: ++ (714) 773-3884
Fax: ++ (714) 449-5810
e-mail: mshapiro@fullerton.edu