A particle is traveling without friction up and down hills and valleys. If its initial potential energy is 85 J and its initial kinetic energy is 83 J, what is its total energy, E?

E:
Correct: Your answer is correct.
J
B. If at a later point its potential energy is 131 J, what is its kinetic energy K at that point?
K: J
C. If at a still later point its kinetic energy is 12 J, what is its potential energy U at that point?
U: J

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