An air bubble originating from an under water diver has a radius of 5 mm at some depth h. When the bubble reaches the surface of the water, it has a radius of 6.3 mm. Assuming the temperature of the air in the bubble remains constant, determine the absolute pressure at this depth h. The acceleration of gravity is 9.8 m/s 2 . Answer in units of Pa. b. Determine the depth of the diver. Answer in units of m.

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A: Part (a) P= 176 kPa Part (d) ∆P= Pa - P × g × y part (e) y= 7.653 m Part (f) y= 0.566 m

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.