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A metal ball of specific gravity 4.5 and...

A metal ball of specific gravity `4.5` and specific heat `0.1 cal//gm-"^(@)C` is placed on a large slab of ice at `0^(@)C`. Half of the ball sinks in the ice. The initial temperature of the ball is:- (Latent heat capacity of ice `=80 cal//g`, specific gravity of ice `=0.9)`

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