`pPrinciples of Physics Text Chapter 21, Problems 1-5

`gText Chapter 21, Problems 1-5, 7, 8, 11, 13, 16, 23    

`uUniversity Physics:  Chapter 29 Problems 47, 54, 59, 64

`pPrinciples of Physics Text Chapter 21, Problems 3-6, 11

`gText Chapter 21, Problems 3-6, 8, 11, 14, 16, 17, 32