4.6 billion year I'm positive
<h2>Answer:</h2>
<u>The correct answer is </u><u>(A) The chemical energy in the food is converted to mechanical energy to give the body energy to move.
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<h2>Explanation:</h2>
The chemical energy in food can be converted to another form of chemical energy when it is stored as glucose or fat. The chemical energy in our food can also be converted to mechanical energy in the form of muscle movement and it provides us energy to travel and move from one place to another pace. The entire energy is not converted to mechanical though, it is also converted into heat energy.
As the length increases, resistance increases, as a result current decreases.
The velocity will remain unchanged (Newton’s 1st Law) unless a force acts on it. If no friction force, then the velocity remains constant.
Explanation:
I'm not sure, but I would go for the more than A since its orbital speed is at its fastest and the sweep occurs in about the same period of days.
