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lec_1_11_concept

# lec_1_11_concept - Which of the following is NOT an ex...

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Which of the following is NOT an ex- ample of Aerodynamics in action? 1. Thrust of a rocket 2. Curve of a baseball 3. Drag of a car 4. Buoy ﬂoating down a river 5. Sailboat underway 6. Lift on an aircraft Or . . . 7. All of the above involve Aerodynamics

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There is a thin boundary layer on a ﬂat wall. The pressure and speed just above the boundary layer are p and V . What is the pressure p at the wall? 1. p = p + 1 2 V 2 �± 2. p = p 3. There’s no way to know for sure.
An airfoil in an airstream has C p = 0 . 1 at one particular surface point. When the freestream speed V is doubled, what is the new C p at this point? 1. New C p = 0 . 4 2. New C p = 0 . 2 3. New C p = 0 . 1 4. New C p = 0 . 05 5. New C p = 0 . 025

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The frame of reference for observing a ﬂowfield is changed. Which statement is true? 1. Pressure field p ( x , y , z , t ) stays the same 2. Velocity field V ( x , y , z , t ) stays the same 3. Speed field V ( x , y , z , t ) stays the same 4. None of these fields will stay the same 5. All of these fields will stay the same
An airfoil at a certain

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