Discussion
For laminar flow at \( Re_x = 10^6 \), the local skin-friction coefficient is nearest to
Answer: D
The Blasius local coefficient is \( 0.664/\sqrt{Re_x} = 0.664/1000 = 6.64 \times 10^{-4} \). The distractor 0.00133 is the plate-averaged coefficient over the same length, which is exactly twice the local value at the trailing edge for laminar flow.
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