Does red light or blue light have a longer wavelength? how do you know?

In what direction does the medium move relative to the direction of the wave? explain.

What will a positive and a negative charge do if they are separated from each other?

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question