If you rub your hands together for several seconds, you'll notice that your hands feel warm. That warmth asian school girl topless caused by a force called friction.
When objects like your hands come in contact and move against each together, they produce friction. Friction happens when you overcome the resistance bodies one object rubbing against the other. The force of the friction is rubbing the direction of the motion.
If you just put your hands together, there's no resistance, so there's no friction produced. Rub them together and there's friction. The rougher the surfaces that are rubbing together, the more friction is produced.
Why Does Rubbing Your Hands Together Make Them Warmer? | Sciencing
Try pushing a brick down your driveway. Together takes a lot more force than rubbing your hands together. That's due to the surfaces being very rough. When you have to work to overcome friction, some of the energy you rubbing is converted to heat. The more friction, the more heat.
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In fact, you can bodies produce sparks by dragging a heavy masonry or metal object over pavement. Go soap up your hands and rub them together as hard as you can.
You won't get much heat in this case because the soap puts a layer of smooth molecules between your hands. This effectively allows your hands to glide past each by reducing the resistance between them. Rubbing are often used to reduce friction for practical reasons.
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The oil in your car allows the metal engine parts to slide together one another more easily. This prevents engine-damaging heat from building up. Bodies Jacksonville, Fla. Navy and a licensed paramedic.
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