Actually a comet dosen't have energy to move. The reason it moves is because it orbits around the sun like the planets do. The gravity from the sun keeps it orbit.
The source of energy for a ball to move is typically the force that is applied to it, such as someone kicking or throwing it. This force creates kinetic energy in the ball, allowing it to move.
Kinetic energy in the wind and water.
Kinetic energy in the wind and water.
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Carbohydrates are a source of energy so we can move, work, exercise, and play.
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a current of water to move the energy producing aparatus.
How quickly is energy pulled from a source measured in volts
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The coma of a comet is formed due to melting of the comet's nucleus by the Sun's energy. This creates a cloud of gas and dust that surrounds the nucleus and forms the visible atmosphere of the comet.