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An aircraft is cruising in still air at 5°C

An aircraft is cruising in still air at 5°C

An aircraft is cruising in still air at 5°C at a velocity of 400 m/s. The air temperature at the nose of the aircraft where stagnation occurs is
(a) 5°C
(b) 25°C
(c) 55°C
(d) 80°C
(e) 85°C

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