From what minimum height a block of ice ...

From what minimum height a block of ice has to be dropped in order that `0.5%` of ice melts on hitting the ground ?

`171.43m`

`17.14m`

`161.43m`

`1.714km`

Text Solution

Verified by Experts

The correct Answer is:

`W=JHimpliesmgh=J(0.5)/(100)xxmL_(ice)`

Topper's Solved these Questions

THERMAL PROPERTIES OF MATTER
NARAYNA|Exercise LEVEL - II (H.W.)|19 Videos
TRANSMISSION OF HEAT
NARAYNA|Exercise LEVEL-II(C.W)|27 Videos

Similar Questions

Explore conceptually related problems

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) .

A piece of ice at 0^@C is dropped into water at 0^@C . Then ice will

A rock is dropped from rest from a height h above the ground. It falls and hits the ground with a speed of 11 m/s. From what height should the rock be dropped so that its speed on hitting the ground is 22 m/s ? Neglect air resistance.

From what height must a block of ice fall to just melt by the impact assuming that half of the heat generated is absorbed by ice? ( J=4.2 joules per calories and L=80 kilocalories per kg)

When 1 g of ice melts at 0^@C

Ice cubes at 0^(@)C each of mass 200 g are dropped one after the other into 2 kg water at 30^(@)C in such a awayy that after the first one melts completely, the second one is dropped. If the heat energy required to melt 1 g of ice is 80 cal, determine the maximum number of ice ice cubes that can be dropped into the water such that no ice is left in the water without melting.

A piece of ice at 0^(@)C falls from rest into a take of water which is also at 0^(@)C and 0.5% of ice melts. Find the minimum height from which the ice falls.

There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container

NARAYNA-THERMODYNAMICS-Exercise

A piece of aluminium falls from a height of 200m on a fixed non conduc...
Text Solution
|
Hail stone fall from certain heigh. If only 2% of the mass of the hail...
Text Solution
|
From what minimum height a block of ice has to be dropped in order tha...
Text Solution
|
Two spheres 'A' and 'B' of masses in the rario 1:2 Specific heats in t...
Text Solution
|
2kg ice block should be dropped form 'x' km' height to melt completely...
Text Solution
|
Two metal balls having masses 50g and 100g collides with a target wit...
Text Solution
|
A brick weighing 4.0 kg is dropped into a 1.0m deep river from a heig...
Text Solution
|
A man of 60 kg gains 1000 cal of heat by eating 5 mangoes. His efficie...
Text Solution
|
2kg of water is converted into steam by bolling at atmosperic pressure...
Text Solution
|
Find the external workdone by the system in K cal, when 12.5 k cal of ...
Text Solution
|
Heat of 20 K cal is supplied to the system and 8400 J of external work...
Text Solution
|
A gas expands from 40 liters to 90 liters at a constant pressure of 8 ...
Text Solution
|
To a system 300 joules od heat is given and it does 60 joules of work....
Text Solution
|
A gas under constant pressure of 4.5 xx 10^(5) Pa when subjected to 80...
Text Solution
|
Find the change in internal energy in joule when 20gm of a gas is heat...
Text Solution
|
When two moles of a gas is heated from O^(0) to 10^(0)C at constant vo...
Text Solution
|
A cylinder of fixed capacity 67.2 liters contains helium gas at STP . ...
Text Solution
|
When a diatomic gas expands at constant pressure, the precentage of he...
Text Solution
|
The molar specific heat of a gas at constant volume is 20 Joule mol^(-...
Text Solution
|
The specific heat of air at constant pressure is 1.005 kJ//kg//K and t...
Text Solution
|