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.
In babies younger than 3 months, a rectal temperature of 100.4 degrees or higher needs to be brought to a doctor's attention as soon as possible, according to the American Academy of Pediatrics (AAP). Call your baby's doctor immediately to let her know that your baby is younger than 3 months and has a fever. If you can't reach your baby's doctor, go to an urgent care clinic or the emergency room right away, even if it's the middle of the night.