Consider the figure below: (a) Evaluate the volumetric strain rate: (b) Evaluate the limit for the volumetric strain rate from part (a) as: x2 - x1, y2 - y, 22 - z1 (c) For the velocity vector field: v(x) = {v1, v2, v3l, evaluate the velocity gradient tensor (d) Use the velocity gradient tensor from part (c) to evaluate the volumetric strain rate from part (b)