When the Reynolds number is greater than 1.9 but less than 500, the coefficient of drag CD is

When the Reynolds number is greater than 1.9 but less than 500, the co

1.	When the Reynolds number is greater than 1.9 but less than 500, the coefficient of drag CD is
A.	CD = 24/R
B.	CD = R/24
C.	CD = 18.5/R<sup>0.6</sup>
D.	CD = R<sup>0.6</sup>/18.5
Answer» D. CD = R<sup>0.6</sup>/18.5