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2)When the rock falls, it has a potential energy of 45J and a kinetic energy of 18J. What is its mechanical energy? HELP PLS

2)When the rock falls, it has a potential energy of 45J and a kinetic energy of 18J. What is its mechanical energy? HELP PLS
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2)When the rock falls, it has a potential energy of 45J and a kinetic energy of 18J.

What is its mechanical energy?




HELP PLS

asked
User SinoTrinity
by
8.2k points

1 Answer

3 votes

Answer: 63J

Step-by-step explanation:

Trust.

answered
User Yiwanmian
by
8.2k points
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