# Physics Help!

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An air bubble has a volume of 1.51 cm3 when it is released by a submarine 102 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume that the temperature of the air in the bubble remains constant during ascent.

• Physics Help! -

P*V = constant as the bubble rises

Calculate the initial-to-final pressure ratio.
That equals the final/initial volume ratio.

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