Which graph is not possible?
A)
B)
C)
D)
need this ASAP ​

In a system, when potential energy decreases, then entropy also decreases. true false

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

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?