Question

a brick shaped solid has a mass of 275 grams and measures 12 cm long, 5 cm wide, and 2 cm high. what is its density?
10 g/centimeter cubed
2.3 g/centimeter cubed
0.44 g/centimeter cubed
1 g/centimeter cubed

Explanation:

Step1: Calculate the volume of the brick

The volume $V$ of a rectangular - solid is given by $V = l\times w\times h$, where $l = 12$ cm, $w = 5$ cm, and $h = 2$ cm. So, $V=12\times5\times2=120$ $cm^{3}$.

Step2: Calculate the density

The density $
ho$ is given by the formula $
ho=\frac{m}{V}$, where $m = 275$ g and $V = 120$ $cm^{3}$. So, $
ho=\frac{275}{120}\approx2.3$ g/$cm^{3}$.

Answer:

B. 2.3 g/centimeter cubed