# A cube of wood, with an edge length of 3*cm, has a mass of 27*g. What is its density?

Sep 6, 2017

$\text{Density,}$ $\rho = 1 \cdot g \cdot c {m}^{-} 3$

#### Explanation:

$\text{Density}$ is simply the quotient....$\text{Mass"/"Volume}$

And here we are quoted the mass, and for a cube we may calculate the volume straightforwardly....

And so $\rho = \frac{27 \cdot g}{3.0 \cdot c m \times 3.0 \cdot c m \times 3.0 \cdot c m} = \frac{27 \cdot g}{3.0 \cdot c m} ^ 3$

$1.0 \cdot g \cdot c {m}^{-} 3$....this is a dense block of wood. Would it float?