@theKwekster 3.3 GPA overall means basically all B’s and a couple A’s. This will all depend on you, but generally if you want an A on any physics/math course, you actually have to put about 2 hours per unit a week for each class outside of class. This means that for your Calc 3 class for example, put about 10 hours a week studying just for that class (whether that be homework or reviewing notes).
To answer your question, if you put in work, a B in every class is doable. If you want to know where your hardest ‘A’ would be, assuming all the professors are at relatively similar difficulty, the hierarchy would be, in my opinion, E&M > Modern Physics > Linear Algebra > Multi Variable > DE.
E&M + Modern Physics is easier to do in combination than Linear + Multi. That’s because the math subjects require you to know almost everything in previous chapters to proceed forward. If you miss a chapter in physics, you MIGHT be able to proceed further for certain chapters. They aren’t as closely linked.