A force could be best described as
A) something that a body possesses, that enables it to keep moving.
B) a mystical aura that emanates after midnight from physics laboratories.
C) something one body does to another body that keeps the second body moving.
D) something one body does to another body that can cause the second body to accelerate.
E) something that a body possesses, that enables it to do work.
Question 2
The percentage of 235U, as a fraction of the total uranium content, present in natural uranium is closest to
A) 5 percent. B) 50 percent. C) 1 percent. D) 20 percent. E) 99 percent.