anonymous
  • anonymous
Which of these is the law of conservation of energy? A. The total kinetic energy in any closed system is constant. B. The total mechanical energy in any closed system is constant if there is no friction acting. C. The total energy in any closed system is constant. D. Momentum is always conserved, but kinetic energy is not necessarily conserved.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Michele_Laino
  • Michele_Laino
I'm pondering...
anonymous
  • anonymous
ok!
Michele_Laino
  • Michele_Laino
a closed system is a system which is able to exchange only energy with the surrounding environment.

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anonymous
  • anonymous
so our solution is option C?
Michele_Laino
  • Michele_Laino
no, since the energy can change, inside a closed system
anonymous
  • anonymous
ohh i am not sure then... choice D ? :/
Michele_Laino
  • Michele_Laino
that's right!
anonymous
  • anonymous
yay! thank you!
Michele_Laino
  • Michele_Laino
:)

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