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- Describe in words what special case is being considered. Specify what conditions hold (e.g., what is assumed constant, if anything, what are the names of the starting and ending values, etc.) and write an equation specifying that condition.
- Show how to get the equation from the two equations above. For each demonstration ( "proof" or "derivation" ) of the final equation, state explicitly any additional equation you use and whether it is (i) an assumed condition for the special case being considered, (ii) a definition, (iii) something else. (If so, what?)

All these equations appear in most physics textbooks. Are all these equations correct? How can they be? Don't they contradict each other? Discuss what you think about this.

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Page last modified August 29, 2004