Dr. kibble is monitoring the position of a meteoroid as it approaches planet earth. he observes it through a telescope every 5.0 minutes and records its position in the table below.
time (min) distance from earth (km)
0.0 18,000
5.0 15,000
10.0 12,000
15.0 9,000
which of the following could be the graph of the meteoroid's remaining distance to earth through time?

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.