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damaskus [11]
3 years ago
5

In a closed system that has 85 J of mechanical energy, the gravitational

Physics
2 answers:
tankabanditka [31]3 years ago
7 0

Answer:

C- it decrease from 85 J to 76 J because it has 85 J mechanical energy. The pulley decreases from 12 J to 9 J which means it lowers by 12. And it lowers by 3.

Explanation:

That's the answer.

Yuliya22 [10]3 years ago
7 0

Answer:

D. It increases from 73 to 76.

Explanation:

Ap3x 2020.

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