A worker on a scaffold (board) on a billboard throws a ball straight up. The ball has an initial velocity of 11.1 m/s when it leaves the worker's
hand at the top of the billboard. (a) What is the maximum height the ball reaches
relative to the top of the billboard? (b) How long does it take the ball to reach this
height? (c) What is the position of the ball at t = 2.00 s? (Show all the work and
formulas) *
Your answer

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.