Question

Problem 3: If the specific weight of the liquid is 8000N/m3, what is its density, specific volume, and specific gravity(S.G)?

Answer 1

Answer on Question #52994-Physics-Mechanics-Kinematics-Dynamics

If the specific weight of the liquid is 8000N/m3, what is its density, specific volume, and specific gravity (S.G)?

Solution

$$\frac {W}{V} = 8 0 0 0 \frac {N}{m ^ {3}}.$$

The density is

$$\rho = \frac {W}{V g} = \frac {8 0 0 0 \frac {N}{m ^ {3}}}{9 . 8 1 \frac {m}{s ^ {2}}} = 8 1 5 \frac {k g}{m ^ {3}}.$$

The specific volume is

$$v _ {g} = \frac {1}{\rho} = \frac {1}{8 1 5 \frac {k g}{m ^ {3}}} = 0. 0 0 1 2 3 \frac {m ^ {3}}{k g}.$$

The specific gravity is

$$S G = \frac {\rho}{\rho_ {w a t e r}} = \frac {8 1 5 \frac {k g}{m ^ {3}}}{1 0 0 0 \frac {k g}{m ^ {3}}} = 0. 8 1 5.$$

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