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.
show more I often hear you shouldn't brush your teeth right away after eating something sugary because the bacteria in the mouth release a lot of acids as they consume the sugar, and these acids may damage the enamel and that tooth brushing when all this acid is in the mouth will damage the enamel even further.