The conversation between human and AI assistant.
What make a sucker pressed on a smooth wall sticks to it?
Can you explain why a sucker pressed on a smooth wall sticks to it?
Sure, there are two main factors that make a sucker stick to a smooth wall. The first is the suction force created by the air that is expelled from the sucker as it is pressed against the wall. The second is the adhesive force between the sucker and the wall, which is caused by molecular attraction between the materials.