Which statement is true for a heating curve?
OA.
It shows how the pressure of a substance changes when heated.
B.
It shows how the temperature of a substance changes when heated.
It shows how the volume of a substance changes when heated.
D.
It shows how the mass of a substance changes when heated.

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

The necleus of an atom is made up of what subatomic particles?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?