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 and children older than 3 months, a fever is a temperature greater than 101.5Âº F. Call your doctor if your childâs temperature reaches 102.2Âº F or higher.Most fevers go away in a couple of days. Call your doctor if the fever lasts four days or more.n infants less than 2 months of age, a fever is any temperature over 100.4Âº F. Itâs also a concern if your newbornâs temperature is less than 96 F. For an abnormal temperature in your newborn, call your doctor or go to the urgent care clinic or emergency room â your newborn needs to be seen right away.