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.
Allergists and allergy patients should thus realize that, just as dust mite allergy can cause eyelid eczema (among other symptoms), an inflammatory response to demodex mite infestation can cause eyelid blepharitits and possibly rosacea. Jeffrey Miller MD, FACAAI. Mission: Allergy, Inc. Hawleyville, CT.