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A block of wood weight 4 kg and has a re...

A block of wood weight 4 kg and has a relative density 0.6 . It is to be loabed with lead so that it will folat completely immersed. What weight of lead is needed (a) if the lead is on top of the block (b) if the lead is attached below the block ? Density of lead=`11.34xx10^(3) kg m6(-3)`

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The correct Answer is:
2.667 kg 2.96 kg
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NN GHOSH-HYDROSTATICS-EXERCISES
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  3. A block of wood weight 4 kg and has a relative density 0.6 . It is to ...

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  4. A metal plate measuing 2m x 1m is immersed in water and is held there ...

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  6. A cylinder of iron floats vertically and fully immersed in a vessel c...

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  9. A U-tube contains water in its lower part. Then 32 cm of kerosene of r...

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  11. A U-tube contains water in its lower part. Then 32 cm of kerosene of r...

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  14. A tube 1.5 m long and closed at on end is half filled with mercry and ...

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  15. two cylinders A and B are of the same dimensions but of different mate...

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  16. A tube 2m long and closed at on e end is half filled with mercury and ...

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  17. A column of mercury of 10cm length is contained in the middle of a nar...

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  18. The volume of an air bubble becomes 8 times the original volume in ris...

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  19. A bottle whose volume is 0.45 xx 10^(-3) m^(3) is sunk mouth downwards...

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