Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, a quantity that is measured in metres per second (m/s or mâs â1) in the SI (metric) system.or example, 5 metres per second is a scalar (not a vector), whereas 5 metres per second east is a vector. If there is a change in speed, direction, or both, then the object has a changing velocity and is said to be undergoing an acceleration.
The duck bill is the result of unnatural overfill in the upper lip. It is make worse when volume is placed in the lip about the vermillion lip edge. The key is to appreciate that only a certain amount of volume is acceptable in a given lip.
What Causes Purple Lips? Purple lips also know as Cyanosis is a medical condition that causes discoloration and bluing of the skin and membranes. Linked to lack of oxygen, cyanosis may be attributed to underlying lung or breathing problems. Often seen in infants with birth defects or lung problems, cyanosis also affects the elderly.