Consider a flat plate positioned inside a wind tunnel, and air at 1 atm and 20°C is flowing with a free stream velocity of 60 m/s. What is the minimum length of the plate necessary for the Reynolds number to reach 2x107?

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Consider a flat plate positioned inside a wind tunnel, and air at 1 atm and 20°C is flowing with a free stream velocity of 60 m/s.

What is the minimum length of the plate necessary for the Reynolds number to reach 2x107?

If the critical  Reynolds number is 5x105, what type of flow regime would the airflow experience at 0.2 m from the leading edge?

Please, I need the solution from fundamental concepts of how the heat flow behaves in the system. That it be answered with theory of the subject

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