What determines the Potential energy pie section? What rule(s) does it seem to follow?

Potential energy is determined by how far above the ground the skater is.  The higher up, the more potential energy.

Explanation:

The higher up the more potential energy!

Explanation:

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

because this was the year that the state of israel was formed