A proton is traveling horizontally to the right at 4.20×10^6 m/s .
1. Discover magnitude and direction of the weakest electric field that can bring the proton uniformly to rest over a distance of 3.10cm.
2. Theta counters clockwise from the left direction
3. How much time does it take the proton to stop after entering the field?
4. What minimum field (magnitude and direction) would be required to stop an electron under the conditions of part (a)?
5. Theta counters clockwise from the left direction