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.
Cleft Lip. More common than isolated cleft palates, cleft lips can be accompanied by a separation of the palate, but need not be. Children born with cleft lips have splits on either or both sides of their nose, which can extend upwards to affect nasal tissue, as well as creating grooves or separations in the gums. Like cleft palate, cleft lip is believed to be caused by an interplay between genetic, or hereditary, factors and chemicals ingested by a mother during pregnancy. A cleft lip can be repaired through a surgical procedure usually performed before 18 weeks of life.