The image you uploaded is a question in Hebrew, related to vector fields. The question asks for the representation of a vector field $\mathbf{F}$ in different coordinate systems or forms.

Here are the main parts of the question:

1. a. The vector field $\mathbf{F}$ in Cartesian coordinates.
2. b. The vector field $\mathbf{F}$ in polar coordinates.
3. c. The vector field $\mathbf{F}$ in cylindrical coordinates.
4. d. The vector field $\mathbf{F}$ in spherical coordinates.

Additionally, the vector field is given as: $\mathbf{F} = \left( \frac{1}{3} x^3, 0, e^y z \right)$

Do you need help solving this question or understanding the transformations between coordinate systems for vector fields? Would you like a detailed explanation of each part of the question?