Which of the following is not an example of kinetic energy being converted to potential energy
a) a basketball player jumping for a rebound
b) releasing a compressed spring
c) sqeezing a rubber ball
d) pulling a sled uphill

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?