How do oceans prevent global warming? a. by increasing the amount of oxygen in air b. by absorbing atmospheric carbon dioxide c. by changing carbonates into carbon dioxide d. by heating the equator and poles unequally

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.