Two positive charged particles will ?

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

If a balloon is taken outside on a very cold day, what will occur?

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two