A solid cube of mass and volume is suspended at rest in freshwater by a light…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Fluids · Fluids

Problem

A solid cube of mass 3.0 kg3.0\,\text{kg} and volume 3.8×10−4 m33.8\times10^{-4}\,\text{m}^3 is suspended at rest in freshwater by a light vertical string. What is the reading, in newtons, on the spring scale attached to the top end of the string? (Density of freshwater =1000 kg ⁣⋅ ⁣m−3=1000\,\text{kg}\!\cdot\!\text{m}^{-3}.)

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