The colleges you list, like almost all colleges, have an online account with College Board into which CB puts all the trest scores, with the result that sending and receipt occur simulataneously, although, depending on college, it may take anywhere from a day to two weeks after receipt for the college to download all the scores and match them with aoplication files.
If you order scores sent December 22, there is good chance CB will send them before the end of the year but there is a risk they will not be sent until after the early January application deadlines.
All the schools you mention, except possibly Wesleyan, state that they accept the December SAT and December ACT for determining admission. That necessarily means they accept test scores that arrive after a Jan 1 application deadline since both tests even if ordered as soon as scores are released may arrive after a Jan 1 deadline, and for the ACT, some scores won’t even be out until after Jan 1. Many who take the writing section of the ACT do not get their writing scores until between a week and two weeks after section scores are released and ACT does not send any test scores, if you took the writing section, until after the writing score is released.
Wesleyan is diifferent only because it is now a test optional college and thus does not state whether the December tests are allowed or disallowed for admission. Weslayan has the weirdest test optional rule that applies anywhere. For determining admission you need submit no test scores although you can choose to send anything, but you are still required to submit either an SAT or ACT, and two subject tests, if you are admitted because they are used for placement, see http://www.wesleyan.edu/admission/apply/testing.html. In any event, it appears you are fine there if scores arrive a little after Jan 1 even if you want them used for admission.
Also be aware of what happens with most all colleges if your scores do not arrive in time for regular admission. About the end of Jan or ealy Feb, if the college still does not have your scores, it will send you a notice via mail or email that states it does not yet have your scores and if you want to be considered for admission, you must get them in promptly. In other words, despite the scores being that late, you get a second chance to provide them.
As to sending the particular subject tests scores, be aware that Cornell requires you to send all SAT and subject test scores for tests you have taken. With the others you list you can choose which scores to send. You might withhold the 580 on physics if you have two other better scores (colleges that require or recommend subject tests typically want to see two tests). You most definitely should send the 730 math 2 score. Percentiles are irrelvant to subject tests. Demonstrated proficiency is key and anything above a 700 shows that. If percentiles were key, thousands who score 800 on the SAT math 2 test would rightly be rejected by higher ranked colleges simply because that score is often only the 80th percentile.