A background check is required of all applicants for the above licenses or. certificates. The following is required prior to going to Greeley/Weld Criminal. Justice Records Section, 1551 N. 17th Avenue, Greeley, CO for the background. check.
Friction is a force that acts against a moving object to slow it down. A type of friction is air resistance. Friction opposes the direction in which the object is moving, causing the object to decrease in speed, or stop all together.
Near the Earthâs surface, friction acts opposite to the direction of the wind and slows it down. The magnitude of friction depends on the speed of the wind and the roughness of the surface. For example, friction is stronger over a forest and fast wind speeds than over calm water and slower wind speeds.