The volume of cylindrical can is 1.54 litre and height is 20 cm. find the area and its base

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

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

An object is kept at 45 m high and how much time will it take to reach the ground