Explain why the velocity and acceleration vectors behave as they do for the preset motions (linear acceleration I, II, circular motion, & harmonic motion).
Dentist Tip: Brushing three times a day is ideal. If you can brush once after every mealâbreakfast, lunch, and dinnerâyou minimize the growth of bacteria in your mouth. But wait an hour after each meal: brushing too soon can cause damage to the enamel of your teeth.
These researchers conclude that brushing immediately after consuming acidic beverages should be avoided. Better to brush before. You've probably seen patients who eat lots of lemons, or put only vinegar on salad, and brushed their teeth right after eating, causing erosion and abrasion and, in some cases, sensitivity.