Answer:
The student on the left was chosen as the system to be analyzed.
Explanation:
In the example titled “Colliding Students” in the textbook, the student on the left was chosen as the system to be analyzed; while the surroundings was chosen as the Earth, the ground, the air, and the second student who happened to collide with the student on the left.
Answer:
Correct answer is "c".
Explanation:
We always use the “marginal analysis”( marginal costs and marginal benefits) when we have to choose what to do in our lives. The costs and benefits can be visible or invisible.
But only the person inside the situation can do the calculation. It doesn't have a correct answer, these are cases where the cost and the benefit are abstract.
Answer:
To avoid conflict in the society
To live peacefully