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1. 4.4

2. 4.2 (Note that you can find expressions for the vorticity in cylindrical coordinates in the appendices at the back of the book.)

3. 4.5 ($v_3=0$. Note that this is our old stagnation point flow.) Neatly sketch the distortion of a typical small square fluid particle during a very short time interval in this flow.

4. 4.8 ($v_3=0$. Note that this is our old stagnation point flow.)

5. 4.9 (Note that you can find expressions for the strain rate tensor in cylindrical coordinates in the appendices at the back of the book.)