The liquid in the open-tube manometer in Figure 12.8a in the textbook is mercury, y1 = 3.00cm, and y2 = 7.00cm. Atmospheric pressure is 980 millibars. What is the absolute pressure at the bottom of the U-shaped tube? What is the absolute pressure in the open tube at a depth of 4.00 cm below the free surface? What is the absolute pressure of the gas in the tank? What is the gauge pressure of the gas in pascals?
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