## PHYS208 Fundamentals of Physics II

### Answer for Ch. 22, 19P

a) Q = - 2 sqrt(2) q
b) For both the force on Q and the force on q to vanish, we would require that
Q = - 2 sqrt(2) q and
q = - 2 sqrt(2) Q be satisfied simultaneously which is not possible unless q = Q = 0.

"http://www.physics.udel.edu/~watson/phys208/exercises/answers/22-19P.html"

Last updated Sept. 7, 1997.

Copyright George Watson, Univ. of Delaware, 1997.