The point is where you draw the "system" boundries. Normally, one does not include the universe (where heat radiates to) in system diagrams. But you could. Wondering if you have taken physics yet. ...
We consider models of systems to help us analyze what is happening. Normally, we only include in the system those elements which have a bearing on mechanics. When energy is not conserved, we ignore where it actually goes...which is outside the system we envisioned for simplicity.
Energy is NEVER lost in the universe.
What is meant by KE being lost to the system in an inelastic collision?
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I am in an intro physics course, online as a pre-req no on site classes were available and my professor chose a crap book with little explaination and then just assigns us to read the book then answer question...so I must turn to the internet for help because he sometimes takes 2-3 days to respond to the class help discussion board.
It is unfortunate, I've never had an online class this poor in response time from the professor.
It is unfortunate, I've never had an online class this poor in response time from the professor.
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