The table shows the potential energy and kinetic energy of a skier at two different positions on a hill. Position and Energy
Position (above ground)
Kinetic Energy
Potential Energy
100 meters
0 units
50,000 units
30 meters
35,000 units
?

What is the potential energy of the skier at a height of 30 meters above the ground?

85,000 units, because total energy increases
15,000 units, because total energy is 50,000 units
15,000 units, because total energy is 85,000 units
85,000 units, because total energy remains unchanged

In 1914, alabama produced 1.7 million bales of cotton, but three years later produced only 515,000, bales. meanwhile, in georgia, 5.2 million acres of land was dedicated for cotton production in 1914, but by 1923 there were just 2.6 million acres used for growing cotton. all of this was the result of the work of a tiny insect: the boll weevil. alabama and georgia first felt the effects of the boll weevil at different times. what would account for this difference in timing? a) the infestation moved from west to east. b) the infestation moved from east to west. c) georgia had better ways to deal with the problem. d) alabama was further from the insect's point of origin.