What characteristics could the wall have that would cause the negatively charged balloon to stick to it?

Which changes of state do the labels represent? a: b: c:

What object a collides with object b and bounces back its final momentum is?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive