(25 pts) Below is a plot of the electric potential in a region as a function of x position. 3 Voltage (V) 1 2 4 5 9 0 2 4 8 10 Positon (m) (a) (5 pts) Calculate the x-component of the electric field at x = 4m. (b) (10 pts) Rank the x-component of the electric field from most positive to most negative for each numbered segment (1-6) and explain your answer. Most Positive Explain: Most Negative (c) (10 pts) A proton is placed at x = 4m with a negligible velocity to the right. What is its velocity at x = 10m? Not segment 4.