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29 April, 17:06

If gravity is the only force present, what is the total mechanical energy of a

glass of milk falling off a table at a time when its potential energy is 15 J and

its kinetic energy is 12 J?

O A. 120

B. 27 J

O C. 33

O D. 153

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Answers (1)
  1. 29 April, 19:16
    0
    B

    Step-by-step explanation:

    Em = Ec + Ep

    Em = 12 + 15 = 27 J
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