Two descriptions about physical quantities are given below: quantity a: it has the same unit as force. quantity b: it measures the amount of matter in an object. what quantities are these most likely describing?

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.

Match each scenario to the form of energy it represents

What is the single most important equation in all of physics?