The larger these peaks and valleys are, the harder it is to slide the object. You can learn more about friction in How Brakes Work. A clutch works because of friction between a clutch plate and a flywheel. We'll look at how these parts work together in the next section.
You should take children older than 3 months to the emergency room (ER) for a fever if the fever is more than 104 degrees for a long period of time. Ice them down first and then bring them to the ER.
A normal temperature is about 98.6Â°F (37Â°C) when taken orally (in your childâs mouth) and 99.6Â°F (37.5Â°C) when taken rectally (in your childâs bottom). If youâre taking your childâs temperature rectally, place him or her belly-down across your lap. No. In rare cases, aspirin can cause Reyeâs syndrome in children.