Consider the two-dimensional flow against a flat plate that is characterized by the stream function \(\psi=A x y\). Superimpose a plane source of strength \(B\) placed at the origin. Determine the relation between the height of the stagnation point \(h\), the constant \(A\), and the strength \(B\). Sketch streamlines for the flow and identify the streamline that divides the two flows.

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Source P6.87 h