Two charges, +9 µC and +15 µC, are fixed 1 m apart, with thesecond one to the right. Find the magnitude and direction of thenet force (in N) on a −8 nC charge when placed at the followinglocations.
(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 directionperpendicular to the line joining the two fixed charges (Assumethis line is the x-axis with the +x-directiontoward the right. Indicate the direction of the force in degreescounterclockwise from the +x-axis.)
magnitude__________ N
direction____________ ° counterclockwise from the+x-axis
