A 4 kg object is moving 2 m/s to the right. A 4 N force pushes to the left on the object for 3 seconds.

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

An object's buoyant force and weight mean the same thing.a. trueb. false

The air that we breath is made mostly of which gaseous molecule