Calculate the rise in temperature of water, which falls from a height of 100m. Assume that `80%` of the energy due to fall is converted into heat and is retaied by the water. `J = 4.2 xx 10^(7) erg cal^(-1)`.

A water fall discharges 60 litres of water per sec from a vertical height of 200 m . Assuming that all the energy due to fall is converted to heat and is retained by the falling water , find (i) the quantity of heat produced per sec and (ii) rise in temperature of water .

Water at Bhakra dam falls through a height of 210 m. Assuming that the whole of the energy due to fall is converted into heat, calculate the rise in temperature of water. Take J = 4.2 J cal^(-1) and g = 9.8 ms^(-2) .

In a water-fall the water falls from a height of 100 m . If the entire K.E. of water is converted into heat, the rise in temperature of water will be

Water drops from a height of 50 m in a waterfall. Find out the rise in temperature of water, if 75% of its energy is converted into heat and absorbed by water. (J = 4.2 xx 10^(7) erg cdot cal^(-1) , g = 9.8 m cdot s^(-2))

A body of mass 1 kg falls to the ground from a height of 1km. If the entire amount of energy is converted into heat , find out the amount of heat produced. (J = 4 cdot 1 xx 10^(7) erg cdot cal^(-1)) .

A water fall is 84 m high. Assuming that half the kinetic energy of falling water get converted to heat, the rise in temperature of water is

Calculate the difference in temperature between the water at the top and bottom of Niagra falls of height 500 m assuming that the whole K.E. due to fall is converted into heat. Specific beat capacity of water 4200 Jkg ^(-1) K ^(-1).

Calculate the difference in temperature of water at the top and the bottom of a water fall of 150 m height.