Objectives:
10. Define a surface integral.
11. Evaluate surface integrals.
12. Find the flux of a vector field across a surface.
Ch 16 playlist: https://www.youtube.com/playlist?list=PLGOk2-zeLtjCT6PfbdnG6ORkZXFLXmx8Z
PDF copy of the notesheets: https://drive.google.com/file/d/105IeGB4pweqjfTQ29Oab0X03sn09N8uv/view?usp=sharing
