An air bubble is forced to descend at a steady rate into the ocean with a specia

Question

An air bubble is forced to descend at a steady rate into the ocean with a special device. Which one of the following graphs best describes the gauge pressure p inside the bubble as a function of time t if the air bubble just start descending into the water at time t = 0 s? Consider the water with constant density with depth.

An air bubble is forced to descend at a steady rate into the ocean with a special device. Which one of the following graphs best describes the gauge pressure p inside the bubble as a function of time t if the air bubble just start descending into the water at time t = 0 s? Consider the water with constant density with depth.

Explanation / Answer

gauge pressure P-Po = dgh

so the gauge pressure is directly proportional to the depth h

so graph A would be the correct representation

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