Answer:
D = 18000 kg/m3
V = 2.5*10{-7}m3
Explanation:
From the Archimedes principle,
Weight of fluid displaced = W_{air} - W_{water}
W_{air} = 4.5 gm
W_{water} = 4.25 gm
[tex]W = [4.5 - 4.25]*9.81*10^{-3}[/tex]
W = 2.4525*10{-3} N
[tex]\frac{density\ of\ object}{density\ of\ fluid} = \frac{weight\ in\ air}{weight\ of\ displaced\ fluid}[/tex]
[tex]Density\ of\ object = \frac{D_{water}*Weight\ in\ air}{weight\ of\ displaced\ water}[/tex]
[tex]D = \frac{1000*4.5*10^{-3}*9.8}{2.4525*10^{-3}}N[/tex]
D = 18000 kg/m3
b) object Volume can be obtained as ,
[tex]V = \frac{m}{D} = \frac{4.5*10^{-3}}{18000}[/tex]
V = 2.5*10{-7}m3
