A laser surgeon can advise you on the type, number, and cost of the treatments your skin will require. Laser treatment will generally cost between $300 and $500 for a single session, multiple sessions are usually required.
The rubbing of one object or surface against another. A physical force that resists the relative motion or tendency to such motion of two bodies in contact. friction. A force on objects or substances in contact with each other that resists motion of the objects or substances relative to each other. â Static friction arises between two objects that are not in motion with respect to each other, as for example between a cement block and a wooden floor. It increases to counterbalance forces that would move the objects, up to a certain maximum level of force, at which point the objects will begin moving.
Science Clip Art For Children. 1  Coeffiecient of Friction: the ratio between the force necessary to move one suface horizontally over another and the pressure between the two surfaces. In the picture the coeffiecinet of friction is the amount of force necessary for this person to go from not moving the box to moving it.