The electric potential in a certain region varies with position as V(x) = ax2 - bx + c, where a = 2.2 V/m2, b = 16.5 V/m, and c = 14 V. A) Find the electric field vector E. B) What is the magnitude of the electric field, in volts per meter, at x = 1.0 m? C) What is the direction of the electric field at x- 1.0 m?D) What is the magnitude of the electric field, in volts per meter, at x 5.0 m?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.