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Figure 8 shows stone of mass 4.0kg immersed in water and suspended from a spring balance with a string. The beaker was placed on a compression balance whose reading was 85N. The density of the stone was 3000#kgm^-3# while the density of the liquid was 800#kgm^-3#
(a)volume of the liquid displaced.
(b) upthrust on the stone
(c) reading of the spring balance
(d)reading of the compression balance when the stone was removed from the water.