Randall tries to pick up a small bit of plastic wrap that is on his desk. Randall's hand has a negative charge. The piece of plastic has a negative charge. What will happen when Randall's hand gets close to the plastic?

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

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.

Smallest intensity of a stimulus that you can detect 50 percent of the time is