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Started by Robert Stair
Thu, 14 Jul 1994 13:09
Re: KE & P
Author: Robert Stair
Date: Thu, 14 Jul 1994 13:09
Date: Thu, 14 Jul 1994 13:09
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1323 bytes
Joe, Your statement that "most collisions are cases where energy is not conserved, but momentum is" is true if we are considering only "mechanical" energy (KE + PE). In elastic collisions, this quantity will be conserved; in inelastic collisions (the majority on a macroscopic scale), it will not be conserved. In either case, however, the "total energy" (KE + PE + thermal and mass energies) WILL be conserved. Bob Stair AAPT Physics Teaching Resource Agent bobstair@csn.org
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