Hello! The interaction between the two system is an inter-dependent relationship. An example of this is that the heart pumps arterial blood to the circulation. The deoxygenated or venous blood returns to the lung where blood is oxygenated. Then the blood flows into the heart chambers and the cycle continues on.
Watching adding notes, correcting, and overall being a part of the project he/she is working on.
1) A
2) B
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4) D
5) E
6) F
7) G
8) H
The answers are already in the picture.
Would be same everywhere !! mechanical energy is always constant !
and it doesn't matter air is present or not....total energy is always constant !