Terminal velocity in the presence of buoyancy force Settling velocity W s of a sand grain (diameter d, density 2650 kg/m 3) in water at 20 Â°C, computed with the formula of Soulsby (1997). When the buoyancy effects are taken into account, an object falling through a fluid under its own weight can reach a terminal velocity (settling velocity) if the net force acting on the object becomes zero.
Definition of poorâmouth. 1  intransitive verb. : 2  to plead poverty as a defense or excuse. 3  transitive verb. : 4  to speak disparagingly of.
In addition, people with diabetes often complain of bad breath and bitter, metallic, or sour tastes. The bacteria that cause bad breath, taste disturbances, and dry mouth produce sulfide molecules particularly at the back of the tongue â an acidic, sugary, dry, anaerobic environment where bacteria thrive. If left untreated, dry mouth can lead to many oral health issues including gingivitis and gum disease.