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The total potential energy =

  • A.Internal Energy + Kinetic Energy
  • B.Internal Energy + Gravitational Potential Energy
  • C.Internal Energy - Kinetic Energy
  • D.Kinetic Energy + Gravitational Potential Energy

Answer: B

Total potential energy is internal energy + gravitational potential energy.

In atmospheric energetics, for a column of air in hydrostatic balance, the internal energy and the gravitational potential energy are proportional to each other and change together, so they are combined as total potential energy. Only a small part of it, the available potential energy, can be converted into kinetic energy (Lorenz).

Kinetic energy is the energy of motion and is the form into which potential energy is converted, so any option adding or subtracting kinetic energy does not define potential energy.

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