Recent content by p.mcnamara

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    Submarine Sinking: Calculate Volume Needed to Flood

    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...
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    Free Diving: Lung Volume at Different Depths

    I need this answer within a half an hour
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    Free Diving: Lung Volume at Different Depths

    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?
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    Have manometer given density and mass

    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...
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