(1) Suggest the material from which the two coils are made. State the reason for using this material. (2) Suggest the material from which the core is made. State the reason for using this material.​

Which term best describes the phrase “something that happens”?

Idon’t quite understand this problem

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.