# Jack has a rock. The rock has a mass of 14g and a volume of 2 cm^3. What is the density of the rock?

Feb 1, 2017

Jack's rock has a density of $7 \cdot g \cdot c {m}^{-} 3$.

#### Explanation:

$\text{Density, "rho="Mass"/"Volume}$.

And thus with the given units, we simply set up this quotient:

$\text{Mass"/"Volume} = \frac{14 \cdot g}{2 \cdot c {m}^{3}}$, and rho=??; and you can see that this quotient gives the required units of $g \cdot c {m}^{-} 3 \equiv g \cdot m {L}^{-} 1$. Capisce?

I suggest Jack does not advertize his possession.