Tips for problem set 6

-For question 1, we just want a rough estimate here, so anything that gets the right order of magnitude will be okay.

-For question 2, problems 36-41 in chapter 39 could be used for warm-up/extra practice

-For question 3, it is probably helpful to look back at the notes and clicker questions for the class where we discussed the definition/meaning of mass.

-For question 4, it may be helpful to look at the tutorial solutions for last week.