Fluid Mechanics - Physics Help

[Cinematic]

Hey guys, just wondering if any of you guys can help me out with this?

imgur.com/7464BWg

Thanks!

[Garnier Fructis]

1. Use the equation for pressure in the presence of gravity.
2. Use Archimedes' principle.
3. Use Bernoulli's equation and the continuity equation.

These are very simple so I won't do them for you, but the hints above should be enough.

[Darsithis]

Asking for assistance on a small part of a problem is okay, if you've done most of the work. But asking for the solution isn't.