a positive charges is brought closer to another positive charge .Explain what happened to the Electric potential as both charges are brought closer together

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

What is a good example of instantaneous speed

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?