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

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In an isolated container, a ball released will not bounce indefinitely due to energy loss from heat during collisions, contradicting the concept of perpetual motion. Similarly, a Newtonian liquid will also not bounce indefinitely, as it cannot transfer energy to the ground without generating heat. The principle of energy conservation applies, meaning that both scenarios will eventually result in a loss of motion. Discussions around perpetual motion are generally prohibited, emphasizing that such machines cannot exist. The conversation highlights the importance of understanding energy conservation in these contexts.
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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