問題詳情

5.(20)The horizontal velocity in the wake behind an object in an air stream of velocity U is givenby where r is the non-dimensional radial coordinate, measured perpendicular to the flow. Find an expression for the drag on the object.

參考答案

答案:D
難度:簡單0.721138
統計:A(400),B(28),C(444),D(2255),E(0)

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