What is the Kelvin-Helmholtz mechanism?
A) the tidal flexing that causes Io to be geologically active
B) A satellite in a nonequatorial orbit will have its orbit gradually shifted toward the equatorial plane.
C) the release of gravitational potential energy as heat when a body contracts
D) the shift of the spectral peak to longer wavelengths as a body cools off

Question

Quizplus · Accepted Answer

The Kelvin-Helmholtz mechanism describes the process where a celestial body releases gravitational potential energy as heat when it contracts. This process was proposed as a way to explain the source of the Sun's energy before nuclear fusion was understood.

What Is the Kelvin-Helmholtz Mechanism