Two 25.0N weights are suspended at opposite ends of a rope that passes over a frictionless pulley. What is the tension in the rope?

tension in rope = 25.0 N

Explanation:

       ∑F = F - W = 0

       so

       F = W

       so tension in rope = F  = T  = 25 N

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.