Question

An open system starts with 20,000 J of mechanical energy. The energy changes to 18,000 J of mechanical energy and 2,058 J of thermal energy. What is the final total energy of the system?


A.
4,058 J

B.
20,058 J

C.
22,058 J

D.
17,942 J

Answer 1

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The mechanical energy of the system remains constant provided there is no loss of energy due to friction. The energy would transform to kinetic energy when the speed is increasing

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Answer 2

Answer:A

Explanation:yea