A girl (on the earth) drops a ball of mass 0.5 kg from a height of 2 metres. i. How much G. P.E. does the ball have before it has dropped?
ii. How much G. P.E. does it have once it hits the ground?
iii. What happens to all of the GPE? (think about energy transfers)

chemists can use the electron cloud model to assign electrons to different atomic orbitals. atomic orbitals also explain the patterns in the periodic table

explanation:

i have no clue hope you find the answer

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.