What Happens to a Punctured Pressurized Canister as It Sinks in the Ocean?

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Homework Statement


A pressurized canister of air is punctured and then dropped into the ocean where it quickly sinks. The pressure of the air inside the canister is two times greater than atmospheric pressure. Describe what will happen to the canister as it sinks. In particular, will the air bubble out of the canister or will water leak into the canister? Or will this behavior change as the canister sinks?

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The Attempt at a Solution


I have a hard time visualizing these types of questions. But here's what I was thinking - that the air inside the canister would bubble out until the pressure in the inside was equalized with the outside; then water would start leaking into the canister, causing it to begin sinking? Am I on the right path?
 
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The question says the canister starts sinking immediately. You are along the right lines however. Just take the initial sinking into account.