I have several questions about fluid mechanics, surface tension, and drag. It's a lot to post here, but I won't be able to graduate if I don't understand these concepts.

Please help if you can. I can either post a few questions here, or we can collaborate via email or IM.

Thanks a bunch.

Question

I have several questions about fluid mechanics, surface tension, and drag. It's a lot to post here, but I won't be able to graduate if I don't understand these concepts.

Please help if you can. I can either post a few questions here, or we can collaborate via email or IM.

Thanks a bunch.

rhystic · Answer

ask a couple so we can get a jist of where you need clarification please.

anonymous · Answer

Here are the problems I'm working on: http://i.imgur.com/r8QRT.png I'm mainly having trouble with #2 and #6. They involve Biology, but they are essentially Physics problems. For #2, I know the density of seawater and I know the surface tension of water, but I'm not sure how to work in the diameter. I assume it involves plugging in numbers and balancing an equation, but I don't know which equation I would use.