1. The problem statement, all variables and given/known data A 6.45 uC particle moves through a region of space where an electric field of magnitude 1220 N/C points in the positive direction, and a magnetic field of magnitude 1.19 T points in the positive z direction. If the net force acting on the particle is 6.45E-3 N in the positive direction, calculate the magnitude of the particle's velocity. Assume the particle's velocity is in the x-y plane. 2. Relevant equations F=qE v=1/B(E-Fnet/q) 3. The attempt at a solution This is what I did: using F=qE: (6.45 e-6 C)(1220N/C)= 0.00787 N Then using V=... : (1/1.19T)(1220N/C - 6.45 E-3/6.45 e-6)= 184.8 m/s BUT it keeps telling me my answer is wrong... do I have to put it in the negative direction?