Robert uses a spring scale to measure force. what are the units of his measurement?

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.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

What is an aquifer for science class