Is this course load manageable for a junior?

AP Physics C
AP Chem
AP Calc AB
AP Seminar
AP Econ
I will have 90 min. of study hall per day at school. How much homework should I expect? Is taking Physics C and Calc AB concurrently too hard. How do these courses compare to APUSH difficulty wise (the only other AP I’ve taken).

Physics C should be taken with calculus (DD’s high school requires it), so you are okay there. I see doubling up on lab sciences (AP Chem + Physics C together) as potentially problematic.

AP Seminar isn’t too hard. It is a freshman AP class in DD’s school.

Depending on the types of schools you will be applying to, you might not have enough years of foreign language.

I would not recommend two lab sciences at once.
Why have you chosen AP Physics C? What other sciences have you taken?
Where is your english?

I took AP physics c and AP chem this year and it was fairly easy provided I didn’t procrastinate. My AP physics c class was only mechanics, though, so I imagine that it would be a lot harder if your class is both mechanics and electricity and magnetism. I think your schedule is manageable as long as youre a good student.