Wrong Solution and Missing Picture

I made some small further changes such as moving the diagram to where I felt was a more appropriate place and removing the other diagram (if someone still needs it, here is the reference to it ). I then finally flagged it as good because I do think we've reach a sort of equilibrium in the conversation. I think the best approach now is to just let it be and see how students receive it, if there are complaints about cylinders/disks or origin at the apex/the bottom etc. then perhaps we will have further updates. At some point I may work on tidying up the diagram, but it's definitely usable in the interim. As a side note, a lot of the language I use with these types of problems is usually done in a way that is similar to how they look at them in physics classes as to avoid students thinking that they're two entirely separate topics. This is something that's hard to do for someone who has not had a lot of experience working with these application centered problems before.