How does the electric potential energy between two negatively charged particles change if one particles charge is increased by a factor of 2?
A. It is reduced by a factor of 2
B. It is increased by a factor of 4
C. It is increased by a factor of 2
D. It is reduced by a factor of 4

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.