Web30 okt. 2024 · Friction can be reduced to a great extent by polishing surfaces or by using a large amount of lubricants such as oil, water, or grease but we cannot reduce friction to zero. What is friction examples? 10 examples of friction in our daily life Driving of a a vehicle on a surface. Applying brakes to stop a moving vehicle. Skating. WebAnswer (1 of 5): The force which opposes the motion of one body over the other body is called FRICTION It opposes the relative motion between the two surfaces in contact. It always acts in the opposite direction of the applied force. The friction between the two surfaces can never be zero. Fric...
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WebPolishing the surface makes the surface smooth and reduces friction. Lubricants such as oil or grease reduce friction too. When objects are rolled over the surface, the friction between the rolled object and the surface can also be reduced by using ball bearings, so there is less direct contact between the two objects. WebFriction can be increased by ___________ a) Using air cushion b) Lubricants c) Using sand d) Using ball bearings Expert Solution Want to see the full answer? Check out a … china kids waterproof socks
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Web3 apr. 2014 · The first cause of reduced air flow is friction. When air moving through a duct rubs against the inner surfaces of that duct, it loses energy. It slows down. Its pressure drops. The more it rubs, the more those things happen. It’s like walking down a busy sidewalk with your shoulder rubbing against the buildings. Web8 dec. 2024 · The amount of friction mainly depends on the “normal force,” which surfaces exert on the objects sitting on them, as well as the characteristics of the specific surface … WebEngine Friction and Lubrication Engine friction – terminology – Pumping loss – Rubbing friction loss Engine Friction: terminology • Pumping work: Wp – Work per cycle to move the working fluid through the engine • Rubbing friction work: Wrf • Accessory work: Wa Total Friction work: Wtf = Wp + Wrf + Wa Normalized by cylinder ... china killed dog apartment