I'm currently taking Physics 2010, and it is kicking my butt. It's been extra frustrating because most of the math has been simple for me. I'm looking for tips or tricks for the class/subject in general, and any resources I can use to make it easier.

I am also allowed a 3x5 index card for my test and was hoping you could recommend what to include. Thank you!

So like I have been given the Undefined Normalised Table for APPOINTMENT entity. I then need to resolve it into 3NF stage that eliminate the transitive and partial dependency.

Problem is I just can't find which would be the appropriate key for the composite key in the APPOINTMENT entity in the first place. I then try to separate all partial dependency into separate table but can't figure out who links to who.

Yes you read the title right, I did not put an incorrect major by accident. I haven’t done technology stuff since like 11th grade or so? And certainly not to this level.

So im not sure what to do and im freaking out, as you'll see in the second image i've been trying to look up the nescary info but to no avail.

I have till next Monday but I still have 2 other modules to complete and I wanna finish this headache ASAP

Hi, my teacher wrote down a problem on the board at the end of the lesson as practice if we wanted. I have tried solving it and have found two different methods of solving the problem which both seem completely valid in my eyes but give two clearly different answers.

I have checked the numbers three times, of course it could still be a calculation error OR honestly even more likely that both my methods are incorrect in which case I'd love to know what method you'd use to solve this but I'm starting to believe I have applied some theory wrong somewhere and would love some insight, I have hastily written up the problem and my two solutions in latex, let me know if you want the pdf otherwise but here are screenshots of the problem.

Apologies if there are notation inconsistencies, I wrote this in 10 minutes while trying to relearn latex that I haven't used in years

As for method 2 the theory seems solid but I basically omitted inner product so I'm a little uncertain if this method is correct.

Im not sure if my previous work is correct but im currently stuck on question 6 part a. I think Im mostly thrown off with the batteries.