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.
If youâve had orange juice or fruit for breakfast the acid from that fruit softens the enamel on your teeth and if you brush too soon you could abrade the enamel. You should wait until at least an hour after youâve eaten before you attempt to brush, he says.