Will a Ball or Newtonian Liquid Bounce Indefinitely in an Isolated Container?

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Discussion Overview

The discussion revolves around the behavior of a ball and a Newtonian liquid when released in an isolated container, specifically whether they would bounce indefinitely without any change in height due to the absence of sound or heat production during collisions. The inquiry also touches on the implications of energy conservation in this scenario.

Discussion Character

  • Exploratory, Debate/contested

Main Points Raised

  • One participant questions whether a ball released in an isolated container would continue to bounce indefinitely without any change in height, and whether a Newtonian liquid would exhibit similar behavior.
  • Another participant suggests that the container cannot prevent the ball from heating up during collisions, implying that energy loss may occur.
  • Some participants assert that energy is conserved and that perpetual motion machines do not exist, indicating that these principles should inform the discussion.
  • There is a mention of a potential misunderstanding regarding the discussion of perpetual motion, with one participant expressing uncertainty about the rules surrounding this topic.

Areas of Agreement / Disagreement

Participants express differing views on whether the ball and liquid would bounce indefinitely, with some asserting that energy conservation principles would prevent this from occurring. The discussion remains unresolved regarding the implications of these principles on the behavior of the ball and liquid.

Contextual Notes

Limitations include the assumption that no energy is lost during collisions and the implications of heating during these interactions, which are not fully explored. The discussion also reflects uncertainty about the rules governing the topic of perpetual motion.

Amr Elsayed
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Hi,
I want to make sure what is going to happen if I release ball to fall in an isolated container where no sound or heat is a production of collision. Would it keep going up and down without any change in height reached every single time ? what if I release a Newtonian liquid ? would it bounce too ? giving that liquid cannot transfer energy to ground , does this condition of isolated ground make no sense ??
 
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Amr Elsayed said:
I release ball to fall in an isolated container where no sound or heat is a production of collision.
The container cannot prevent the ball from heating up during the collision.
Amr Elsayed said:
what if I release a Newtonian liquid ?
Same as above, you cannot prevent it from heating up.
 
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Energy is conserved. Perpetual motion machines do not exist. Using those principles, can you answer your own questions?

By the way, discussion of perpetual motion is forbidden on PF.
 
anorlunda said:
Energy is conserved. Perpetual motion machines do not exist. Using those principles, can you answer your own questions?
My own question is already answered in post #2

anorlunda said:
By the way, discussion of perpetual motion is forbidden on PF.
All I did talk about was conservation of energy. I don't know if it's forbidden or even why, if so I didn't know before posting, thanks for telling me
 

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