HELP ME PLEASEEE ILL GIVE BRAINLIEST AND 30 POINTS Two charged balls are 10 cm apart. One is positively charged, and the other is negatively charged.

•Describe the electric field lines and any forces that would exist between the two balls.
•Explain how the electric field and/or force would change if both balls had positive charge.

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.