Answer:
[tex]0.0000584637\ m^{3}\\[/tex]
Explanation:
Hello
Density is a measure of mass per unit of volume
[tex]d=\frac{m}{v} \\\\\\[/tex]
and the weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity
[tex]W=mg[/tex]
let
[tex]d=13.6*10^{3} \frac{kg}{m^{3} } \\ W=7.8 N\\W=mg\\m=\frac{W}{g} \\m=\frac{7.8 N}{9.81 \frac{m}{s^{2} } }\\m=0.8 kg\\\\d=\frac{m}{v} \\v=\frac{m}{d} \\v=\frac{0.8 kg}{13.6*10^{3} \frac{kg}{m^{3} }}\\Volume=0.0000584637\ m^{3}[/tex]
the volumen of the sample is 0.0000584637 m3
have a great day