1) A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.680 m³ and the tension in the cord is 950 N. (a)Calculate the buoyant force exerted by the water on the sphere. (b)What is the mass of the sphere? (c) The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?

University Physics Volume 1
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Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 122CP: A submarine is stranded on the bottom of the ocean with its hatch 25.0 m below surface. Calculate...
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1) A hollow plastic sphere is held below the
surface of a freshwater lake by a cord anchored
to the bottom of the lake. The sphere has a
volume of 0.680 m³ and the tension in the cord
is 950 N.
(a)Calculate the buoyant force exerted by the
water on the sphere.
(b)What is the mass of the sphere?
(c) The cord breaks and the sphere rises to the
surface. When the sphere comes to rest, what
fraction of its volume will be submerged?
Transcribed Image Text:1) A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.680 m³ and the tension in the cord is 950 N. (a)Calculate the buoyant force exerted by the water on the sphere. (b)What is the mass of the sphere? (c) The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?
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