`2`kg ice block should be dropped form `'x'` km' height to melt completely. The `8` kg ice should be dropped from a height of

2kg ice block should be dropped from .x km. height to melt completly. The 8 kg ice should be dropped from a height of

Find out the minimum height from which a piece of ice at 0^(@)C should be dropped so that it melts completely due to its impact with the ground. Assume that half of the energy loss due to the fall is responsible for the fusion of ice. (Latent heat of fusion of ice = 80 cal cdot g^(-1), g = 980 cm cdot s^(-2) , J = 4.2 J cdot cal^(-1))

A body A of mass 4 kg is dropped from a height of 100 m. Another body B of mass 2 kg is dropped from a height of 50 m at the same time. Then :

A body A of mass 4 kg is dropped from a height of 100 m. Another body B of mass 2 kg is dropped from a height of 50 m at the same time. Then :

Find out the minimum height from which a piece of ice at 0^(@)C should be dropped so that it melts completely. Assume that 50% of the energy lost due to its fall is responsible for the fusion of ice. J = 4.2 xx 10^(7) erg cdot cal^(-1) , latent heat of fusion of ice = 80 cal cdot g^(-1) .

A block of ice at 0^@C is dropped from a height and melts completely on reaching the ground.assuming no loss of energy on the way to ground , Find the height from which it is dropped .

A piece of ice at 0^(@)C is dropped to the ground from some height. The piece of ice melts completely due to its impact with the ground. Find the height from which the piece was dropped considering that 60% of its energy is converted into heat. (J = 4.2 J cdot cal^(-1))

Find out the minimum height from which a piece of ice should be dropped to the ground so that it melts completely. Assume that 20% of energy is lost. J = 4.2 xx 10^(7) erg cdot cal^(-1) and latent heat of fusion of ice = 80 cal cdot g^(-1) .

From what height must a block of ice be dropped in order that it may melt completely. It is assumed that the whole of energy is retained by ice. Given that latent heat of ice = 80 cal g^(-1) .

An ice block at 0^(@)C is dropped from height 'h' above the ground. What should be the value of 'h' so that it melts completely by the time it reaches the bottom assuming the loss of whole gravitational potential energy is uded as heat by the ice? [Given: L_(f) = 80 cal//gm]