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Q: Helium at 20C and low pressure flows past a thin flat plate 1 m long and 2 m wide. It is desired that the total

Helium at 20°C and low pressure flows past a thin flat plate 1 m long and 2 m wide. It is desired that the total friction drag of the plate be 0.5 N. What is the appropriate absolute pressure of the helium if U = 35 m/s?

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For helium at 20C take R 2077 Jkg K and 197E5 kgm s It is best ... View full answer

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