Q- At what speed an ice bullet (0oC) is to be fired on a target so that the whole ice in it is vaporized (100oC)? Consider the whole energy of bullet remains in it after hitting the target. (specific heat of water = 4.18 J/g/0C; Latent heat of ice = 334 J/g and latent heat of steam = 2272 J/g)
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