Question

you have a rock with a volume of 30 cm³ and a mass of 60g. calculate its density (1 point)
3 g cm⁻³
1 g cm⁻³
2 g cm⁻³
1800 g cm⁻³

Explanation:

Step1: Recall density formula

The formula for density $
ho$ is $
ho=\frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Substitute values

Given $m = 60g$ and $V=30cm^{3}$, substitute into the formula: $
ho=\frac{60g}{30cm^{3}}$.

Step3: Calculate density

$\frac{60}{30}=2$, so $
ho = 2gcm^{-3}$.

Answer:

C. $2gcm^{-3}$