question_answer

Consider the following coefficients:

(Re = Reynold number)

1. \[1.328\,\,{{\operatorname{Re}}^{-\,\left( 0.5 \right)}}\] for laminar flow

2. \[0.72\,\,{{\operatorname{Re}}^{-\,\left( 0.2 \right)}}\] for turbulent flow

3. \[0.072\,\,{{\operatorname{Re}}^{-\,\left( 0.2 \right)}}\] for turbulent flow

4. \[1.028\,\,{{\operatorname{Re}}^{-\,\left( 0.5 \right)}}\] for laminar flow.

The Coefficients for drag for a flat plate would include:

A) 1 and 2            

B) 2 and 4

C) 1 and 3            

D) 3 and 4