Answer: density of material pm = 693.2kg/m^3
Step-by-step explanation:
Using Archimedes principle.
The buoyancy force equals the weight of material submerged which equals the weight liquid displaced.
Fb = Wm = Wl
I.e
Wm = Wl
pm . Vm . g = pl . Vl .g
pm .Vm = pl . Vl
pm/pl = Vl/Vm
Where; pm and pl are the density of material and liquid oil respectively.
Vm and Vl are the volume of material and volume liquid displaced respectively.
g is the acceleration due to gravity
Fb is the buoyancy force
Wm and Wl are the material weight and liquid displaced weight respectively
Given that the material displaced 75.1% of the volume of the liquid oil
VI/Vm = 0.751
pm/pl = 0.751
pm = 0.751pl
density of oil is 923kg/m^3
pm = 0.751× 923
pm = 693.2kg/m^3