The need for transportation
I think you may be talking about <span>VILLI.</span>
Ptolemy's model had Earth at the center, and the moon's revolved around the planets instead of the planets revolving around the moon and sun. The planets' orbits' moved instead of the planets as well. Geocentric has Earth at the center and heliocentric has the Sun at the center
<span>Which factor can decrease the kinetic energy of an object?
Answer: mass and speed...i think it's decrease in speed tho</span>
