Question: Plot with normalized/relative units

I have a function c(k), I want to graph it where the x-axis has the units k/K (where K is a constant, about 0.0027). I was wondering how that is possible to do because for the life of me I can't figure out how to get maple to allow for relative units like that. Here's my code:

 

K:=0.0027

c := sqrt(9.8*K/k+0.7197e-1*k/K*(1/1000))

cmin:=(0.7197e-1*(4*9.8)*(1/1000))^(1/4);

C:=c/cmin

plot(C, k = 0 .. 4, 0 .. 4)

 

 

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