A Stone of Volume 1 $\times$ 10^-2 M³ Lies at the Bottom of a Freshwater Lake

question 65

Multiple Choice

A stone of volume 1.42 $\times$ 10^-2 m³ lies at the bottom of a freshwater lake.If the rock's specific gravity is 3.5,the work required to lift it 1 m through the water is approximately

• A)487 J
• B)139 J
• C)348 J
• D)223 J
• E)469 J

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Definitions:

Lattice

A regular, repeated three-dimensional arrangement of atoms, ions, or molecules in a metal or other crystalline solid.

Octahedron

A geometric shape with eight faces, often used to describe the structure of certain crystals or molecules.

Tetrahedron

A polyhedron with four triangular faces, six straight edges, and four vertex corners.

Dodecahedron

A three-dimensional shape having twelve flat faces, each a regular pentagon, often studied in geometry and used in various applications.