Two charges, +9 µC and +15 µC, are fixed 1 m apart, with the
second one to the right. Find the magnitude and direction of the
net force (in N) on a −8 nC charge when placed at the following
locations.
(a)
halfway between the two
magnitude ______________ N
(b)
half a meter to the left of the +9 µC charge
magnitude __________ N
(c)
half a meter above the +15 µC charge in a direction
perpendicular to the line...