3. Explain why one side of the single magnet attracted the metalsurface, but repelled the stack of magnets.
4. What orientation of the magnets gives the strongest repulsionor attraction? Why do you think that is the case? What must be trueof the magnetic field at those locations compared to otherlocations around the magnet?
5. If you cut a bar magnet in half, are the two halves stillmagnets? Explain your reasoning
.6. How does the magnet attract something that is originallynon-magnetic?