If we add the number in that constant term is there will also be independence between them?(case of refractI've index of medium)

Me ! a 2 µc charge q1 and a 2 µc charge q2 are 0.3 m from the x-axis. a 4 µc charge q3 is 0.4 m from the y-axis. the distances d13 and d23 are 0.5 m. find the magnitude and direction of the resulting vector r. round your answer to the nearest tenth.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

What happens when a rubber rod is rubbed with a piece of fur?