What Do C and M Represent in the Grain Diameter Formula?

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SUMMARY

The discussion centers on the equation for calculating the Average Grain Diameter, represented as d = C/NLM. Participants express confusion regarding the definitions of variables C and M, which are not provided by the instructor. The average number of intercepted grains, NL, is noted as 2.8 grains/inch, determined using a 3, 3.5-inch line strategy. Suggestions include searching online for additional resources to clarify the meanings of C and M.

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Homework Statement


Find the Average Grain Diameter


Homework Equations


d= C/NLM


The Attempt at a Solution



My instructor hasn't defined what C or M are. I could easily solve this equation if I just knew which numbers I am supposed to substitute in for C and M. NL is the average number of intercepted grains determined by a 3, 3.5in line strategy. The number I have for it is 2.8grains/in.

Any clues on to what C and M could stand for?
 
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Attached is the handout given to me that gives an example of what I am supposed to do on my assignment. Relevant information is on pages 9,10,11.
 

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Peachhow said:

Homework Statement


Find the Average Grain Diameter


Homework Equations


d= C/NLM


The Attempt at a Solution



My instructor hasn't defined what C or M are. I could easily solve this equation if I just knew which numbers I am supposed to substitute in for C and M. NL is the average number of intercepted grains determined by a 3, 3.5in line strategy. The number I have for it is 2.8grains/in.

Any clues on to what C and M could stand for?

Hmm. That's weird that they don't seem to define C or M. Even in the paper you posted, they just seem to throw them into that equation without any description that I can see.

I tried to see if Google could help, and it may be of help (but I didn't have time to go through all the hits yet). I Googled d=C/NM +grain, and got some good hits. Maybe have a look through some of the hits to see if they use that equation at all:

http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GGLL_enUS301US302&q=d=+C/NM++grain

.
 

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