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The application of the oil on the door hinges ____ friction.

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Detailed Solution

The application of the oil on the door hinges reduces friction.
The door hinges make noise due to the excess friction possessed by the restricted motion of the hinges. The application of greasy substances like oil reduces the friction in the hinges. When objects are rolled over the surface, the friction between the rolled object and the surface can be reduced by using ball bearings. Using lubricants such as oil or grease can reduce surface friction. Polishing the surface makes the surface smooth, and friction can be reduced.
Friction is a force that resists the relative motion of solid surfaces, fluid layers, and material elements.

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The application of the oil on the door hinges ____ friction.