Energy from the sun is used by solar collectors to heat water or by solar cells to store energy for electricity. One disadvantage of solar energy is that

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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

Current from a charged capacitor lights a bulb. as time goes on the brightness of the