2E03 is SUPER easy...more than possible to get an A+ in it even if you put a tiny bit of effort - I went to 3 classes and got an A...
All slides are posted and Stroinska puts related material to help you out on ELM too. She's an awesome prof who's very approachable and will go out of her way to help you out.
I can't speak for Natural Disasters, but this course is one of the easiest I've ever taken