Prove that f=ma where the symbols have their usual meaning.

Write the correct abbreviation for each metric unit

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.