Which of the following has the most kinetic energy?
a. a bus stopped at a red light
b. a small child moving slowly on a tricycle
c. a player hanging on the rim after dunking a basketball
d. a helicopter getting ready to take off from the top of a tall building

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato