contestada

The universe could be considered an isolated system because


1many people think that no energy or matter exists outside the universe.


2energy and matter are created in the universe and flow freely into and out of the universe.


3 energy is created outside the universe and matter is created within the universe.


4energy is created in the universe and matter is transferred out of the universe.

Respuesta :

saadhussain514
a) many people think that no energy or matter exists outside the universe. 

An isolated system is defined as a system that does not interact with its surroundings. This is the reason that its total energy and mass remains constant. Moreover, total momentum in a system is conserved for collisions occurring in isolated systems.

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