ch11
ch11 ch11
  • 09-03-2017
  • Physics
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look at the picture then answer the question

look at the picture then answer the question class=

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AL2006
AL2006 AL2006
  • 09-03-2017
If there is no friction, then the total energy of the pendulum is constant. 
No matter where it is in its swing, the sum of

                         (its potential energy) plus (its kinetic energy)

is always the same number.
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