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.
Cracked corners of the mouth is a skin condition known as perleche or angular cheilitis. Winters ussually cause perleche and despite of age everyone is at risk. Medicines like Isotretinoin which dry the skin can also cause angular cheilitis. Using expired lip balm causes and aggravates the problem of cracked corners of mouth. Cracked corners of the mouth are a common condition which is also known as perleche or angular cheilitis.