The reading of a spring balance when a block is suspended fro it in air is 60 newton. This reading is changed to 40 when the block is submerged in water. The specific gravity (relative density) of the block is ____

The reading of a spring balance when a block is suspended fro it in ai

1.	The reading of a spring balance when a block is suspended fro it in air is 60 newton. This reading is changed to 40 when the block is submerged in water. The specific gravity (relative density) of the block is ____
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