What do you mean by Velocity..?
Why is Alcohol and Perfume Volatile?
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1) The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. ... Velocity is a physical vector quantity; both magnitude and direction are needed to define it.
2)Alcohol is used in some perfumes, not all. Perfume ingredients are pure and need to be diluted in order to be safe for use on the human.
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