Question

if a cube of length 2 cm has a mass of 20 gram, calculate it's density in kg/m3 (25,2500,0.25 or none of these)​

Answer 1

Answer:

if a cube of length 2m has a mass of

Answer 2

Answer:

$\large {\underline{Given:-}}$

$Length = 2 \: cm \\ </p><p>Mass = 20 \: gram$

$\large{ \underline{To \: \: Calculate:-}}$

$The \: density \: of \: the \: cube$

$\large{ \underline{Solution:-}}$

$Volume = {a}^{2} \\ Volume = {2}^{2} \\ Volume = 8 \: {cm}^{3}$

$Mass = 20 \: gram$

$\large \blue{Density = \frac{Mass}{Volume} }$

$\leadsto{ = \cancel\frac{20 \: gram}{8 \: {cm}^{3} } }$

$\leadsto{ = \frac{5}{2} } = 2.5 \: gram \: {cm}^{ - 3}$

$\green{ \therefore \: Density = 2.5 \: gram \: {cm}^{ - 3} }$