Two identical masses of `5` kg each fall on a wheel from a height of `10` m . The wheel disturbs a mass of `2` kg water, the rise in temperature of water will be :-

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

In a Joule's experiment, two weights of 5 kg each fall through a height of 3m and rotate a paddle wheel which stirs 0.1 kg water. What is the change in the temperature of the water ?

A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?

A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?

Water falls from a height 500 m. what is the rise in temperature of water at bottom if whole energy remains in the water?

Water falls from a height 500 m. what is the rise in temperature of water at bottom if whole energy remains in the water?

(Take C_(w)=4180 J kg^(-1) K^(-1)) A block of weight 5kg falls from a height of 5m into a bucket containing 10L of water. If all the mechanical energy of the block is used to heat water, find the rise in temperature of water. Take g= 10ms^(-2)