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CE Predict/Explain Beebe and Barton On Wednesday, August
Chapter 15, Problem 29P(choose chapter or problem)
Problem 29P
CE Predict/Explain Beebe and Barton On Wednesday, August 15,1934, William Beebe and Otis Barton made history by descending in the Bathysphere—basically a steel sphere 4.75 ft in diameter—3028 ft below the surface of the ocean, deeper than anyone had been before, (a) As the Bathysphere was lowered, was the buoyant force exerted on it at a depth of 10 ft greater than, less than, or equal to the buoyant force exerted on it at a depth of 50 ft? (b) Choose the best explanation from among the following:
I. The buoyant force depends on the density of the water, which is essentially the same at 10 ft and 50 ft.
II. The pressure increases with depth, and this increases the buoyant force.
III. The buoyant force decreases as an object sinks below the surface of the water.
Questions & Answers
QUESTION:
Problem 29P
CE Predict/Explain Beebe and Barton On Wednesday, August 15,1934, William Beebe and Otis Barton made history by descending in the Bathysphere—basically a steel sphere 4.75 ft in diameter—3028 ft below the surface of the ocean, deeper than anyone had been before, (a) As the Bathysphere was lowered, was the buoyant force exerted on it at a depth of 10 ft greater than, less than, or equal to the buoyant force exerted on it at a depth of 50 ft? (b) Choose the best explanation from among the following:
I. The buoyant force depends on the density of the water, which is essentially the same at 10 ft and 50 ft.
II. The pressure increases with depth, and this increases the buoyant force.
III. The buoyant force decreases as an object sinks below the surface of the water.
ANSWER:
Step 1 of 3
(a) Buoyant force when a volume is submerged in a fluid is given by,
From the above equation it's very clear the buoyant force only depends on the density of the seawater and volume of the bathysphere.