Answer:
[tex]Density = 2570.89\ kg/m^3[/tex]
Explanation:
Given
Mass = 6.8 g
Dimension = 1.15 cm by 1.15 cm by 2 cm
Required
Density is calculated using the following formula:
[tex]Density = \frac{Mass}{Volume}[/tex]
Start by converting mass from grams to kilograms;
[tex]Mass = 6.8g[/tex]
[tex]Mass = 6.8 * 0.001kg[/tex]
[tex]Mass = 0.0068kg[/tex]
Volume is then calculated as follows;
[tex]Volume = 1.15cm * 1.15cm * 2cm[/tex]
Convert cm to metres
[tex]Volume = 0.0115m* 0.0115m * 0.02m[/tex]
[tex]Volume = 0.000002645m^3[/tex]
Substitute these values in the above formula;
[tex]Density = \frac{Mass}{Volume}[/tex]
[tex]Density = \frac{0.0068}{0.000002645}[/tex]
[tex]Density = 2570.88846881kg/m^3[/tex]
[tex]Density = 2570.89\ kg/m^3[/tex] (Approximated)