At a particular instant a proton is at the origin, moving with velocity < 5×104, −9×104, −9×104 > m/s Part 1 (a) At this instant, what is the electric field at location < 3×10−3, 3×10−3, 3×10−3 > m due to the proton? (Express your answer in vector form.) E→ = < > N/C Part 2 (b) At this instant, what is the magnetic field at the same location due to the proton? (Express your answer in vector form.) B→ = < > T