Find the electric flux through each surface. (Use any variable or symbol stated above along with the following as necessary: ε0.)

To find the electric flux through a surface, you need to know the electric field passing through that surface and the area of the surface. The formula to calculate the electric flux (Φ) is:

Φ = E * A * cos(θ)

where:
- Φ is the electric flux
- E is the electric field vector
- A is the area vector
- θ is the angle between the electric field and the surface normal vector

To calculate the electric flux through each surface, you need to follow these steps:

1. Determine the electric field passing through each surface.
The electric field vector can be given or calculated using the formula E = k * Q / r^2, where:
- k is Coulomb's constant (k = 1 / (4πε0))
- Q is the charge generating the electric field
- r is the distance between the charge and the surface

2. Calculate the area vector for each surface.
The area vector is a vector that is normal to the surface and has a magnitude equal to the area of the surface.

3. Determine the angle θ between the electric field and area vector for each surface.
The angle θ is the angle between the electric field vector and the area vector. It can be determined by taking the dot product of the two vectors and dividing it by the product of their magnitudes:
θ = cos^(-1)(E ∙ A / |E| * |A|)

4. Plug in the values of the electric field, area vector, and angle θ into the formula for electric flux:
Φ = E * A * cos(θ)

Repeat these steps for each surface to calculate the electric flux through each of them.