A symmetric U-tube is open to the atmosphere at both ends. Water, with a density of 1.00 x 10° kg/m, is poured into the tube until the water rises to halfway along the straight sides. Then, some unknown liquid with a density of 8.50 x 102 kg/m is poured into one end. This causes the water surface on that side of the tube to go down by 9.0 mm. Calculate the height of the unknown liquid in the tube, h.

Physics for Scientists and Engineers: Foundations and Connections
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Chapter15: Fluids
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A symmetric U-tube is open to the atmosphere at both ends. Water, with a density of 1.00 x 10³ kg/m³, is poured into the tube until the water rises to halfway along the straight sides.
Then, some unknown liquid with a density of 8.50 x 102 kg/m° is poured into one end. This causes the water surface on that side of the tube to go down by 9.0 mm. Calculate the height
of the unknown liquid in the tube, h.
ul
h
9.0 mm
water
water
O A. 7.7 mm
B. 10.6 mm
C. 15.3 mm
D. 18.0 mm
E. 21.2 mm
Transcribed Image Text:A symmetric U-tube is open to the atmosphere at both ends. Water, with a density of 1.00 x 10³ kg/m³, is poured into the tube until the water rises to halfway along the straight sides. Then, some unknown liquid with a density of 8.50 x 102 kg/m° is poured into one end. This causes the water surface on that side of the tube to go down by 9.0 mm. Calculate the height of the unknown liquid in the tube, h. ul h 9.0 mm water water O A. 7.7 mm B. 10.6 mm C. 15.3 mm D. 18.0 mm E. 21.2 mm
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