The equation, N st = f /2, is the __________ analogy.

1.	The equation, N st = f /2, is the __________ analogy.
A.	Colburn
B.	Reynolds
C.	Prandtl
D.	none of these
Answer» C. Prandtl

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The equation, N st = f /2, is the __________ analogy.

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