Agood-quality measuring tape can be off by 0.50 cm over a distance of 20 m. what is its percent uncertainty?

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.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

If element x has 99 protons how many electrons does it have