What is not needed for a charge to flow through a conducting wire?

Identify the error in the sentence. my cat was so enormously overweight that the vet suggested, much to my cat's dismay putting him on a diet. a. overweight c. dismay b. suggested, d. diet.

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.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?