Recent content by p.mcnamara

Homework Statement A submarine that weighs 10,000kg in air and has a volume of 12m3 floats in a harbor. How much of its volume do we need to flood in order to just begin sinking it in salt water with a density 1.02 g/cm3? Homework Equations The Attempt at a Solution Fgravity = mass...

I need this answer within a half an hour

A free diver gets ready to dive into the water. She fills her lungs to capacity (5L) at the surface (normal atmospheric pressure≈105Pa)She then jumps into the water. Assuming no exchange of gas with the blood vessels, what will be her lung volume at 5, 10, 20, and 100 meters?

Homework Statement Assume you have a U-shaped, hollow tube (we call it a manometer) with Karo syrup (density 1200 kgm-3) in it such that both arms are half filled. What would happen if you added a given mass of water (1000 kgm-3) into one of the arms of the manometer? (the mass has less volume...