Hey Lucas,
That's a long list of awesome projects! Your request for our expertise concerning the feasibility of these subjects is quite a difficult one. Every subject is feasible to research do on. However, it depends in which depth you would like to go. Is there also a practical part to your project? This is important to know. I see many subjects concerning thermodynamics, fluid mechanics and gravity. These are all quite diffcult to put to the test. Take this in mind when making your subject decision.
I think you should mainly make your decision based on your own interests. What do you like best?
Furthermore, you requested "information". However, first you should make an attempt at doing research yourself. When you get really stuck we will assist you in finding the correct information.
Kind regards,
Midas Becker