Please help! I've tried solving this with trig but I can't seem to figure out what I've been doing wrong.
Two positive point charges, each of which has a charge of 2.3 × 10−9 C, are located at
y = +0.60 m and y = −0.60 m.
A)Find the magnitude of the resultant electrical force on a charge of 7.0 × 10−9 C located at x = 0.45 m.
The Coulomb constant is
8.98755 × 109 N · m2/C2.
Answer in units of N
B)What is the direction of this force (measured from the positive x-axis as an angle between −180◦ and 180◦, with counterclockwise positive)?
Answer in units of ◦