<p>Physics and Intro to Engineering should both be no problem if you are willing to put in the hours studying. OOP will either be very tough or very easy depending on how naturally coding comes to you. I’ve never taken DiffEq myself, but from what I hear it is one of the tougher math courses, so you might want to do a little research and consider replacing it with a gen ed if it sounds like more than you want to deal with right off the bat.</p>