A bubbler system requires a pressure of 28 kPa to produce bubbles in a liquid with a density of 560 kg/m3. What is the depth of the outlet of the bubbler in the liquid?
A displacer with a diameter of 4.7 cm is used to measure changes in the level of a liquid with a density of 470 kg/m3. What is the change in force on the sensor if the liquid level changes 13.2 cm?
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