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Question by Nykole
Submitted on 9/16/2003
Related FAQ: sci.physics Frequently Asked Questions (Part 1 of 4)
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What is the whole point of why density is a part of velocity?



Answer by Jack Martinelli
Submitted on 9/28/2003
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To express a measurement as an algebraic statement you would write:

L = T/R

Where L is the result of the measurement process, T is the target you are measuring and R is the reference you are measuring with.

The reason density is particularly important is that when this quotient represents a measured length, the quotient is indistinguishable from a linear density.  To remove this ambiguity you simply multiply the presumed density by the target length.

The derivative of density*length with respect to time is our "normalized" velocity.


 

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