In (Figure 1) take the half-cylinder's radius and length to be 3.4 cm and 15 cm, respectively. The half cylinder is "open" (the side which we aren't seeing in the figure does not have a cap), so that the field lines only pass through the object one time.
Part A
If the electric field has magnitude 7.4 kN/C, find the flux through the half-cylinder. Hint: You don't need to do an integral Why not?
Express your answer with the appropriate units.