Answer:
I think it's C, but I'm not 100% sure
Answer:
the desk is the answer because the sound wave is propagating through the solid bench.
Take the average of the vectors degrees. So 112.5 degrees is the direction of the resultant.
Answer:
How many hours you need to spend on studying for AP tests every week is going to depend a lot on how much material you need to review and how comfortable you are with the format of the exam questions. In general, though, you should expect to study for several hours a week split over two to three sessions.
Explanation:
