A cuboid ice piece of dimension 60cm x 50cm x 20cm is packed inside a copper cover of thickness 1cm. Thermal resistivity of copper is 0.05 mK/watt. The temperature of the outer surface of copper is `40^0 C` and `L_f` for ice is `3.4 xx 10^5 J/kg` then the rate of ice melting will be

A 2 kg copper block is heated to 500^@C and then it is placed on a large block of ice at 0^@C . If the specific heat capacity of copper is 400 "J/kg/"^@C and latent heat of fusion of water is 3.5xx 10^5 J/kg. The amount of ice that can melt is :

There is ice formation on a tank of water of thickness 10 cm.How much time it will take to have a layer of 0.1 cm below it ?The outer temperature is -5^(@)C , the thermal conductivity of ice is 0.005 calcm^(-1) ""^(@)C^(-1) and latent heat of ice is 80cal//g and the density of ice is 0.91 gcm^(-3) :

The dimensions of an open box are 50cm,40cm and 23cm. Its thickness is 3cm. If 1 cubic cm of metal used in the box weighs 0.5gms find the weight of the box.

A spherical ball of radius 10cm is enclosed by ice of iniform thickness in spherical shape.If ice melts at the rate of 50cm^(3)/min then the rate of decrease of thickness of ice when thickness of ice is 5cm is

An ice box used for keeping eatables cool has a total wall area of 1m^2 and a wall thichness of 5.0 cm. The thermal cunductivity of the ice box is K=0.01 J//m^@C . It is filled with large amount of ice at 0^@C along with eatables on a dfay when the temperature is 30^@C The latent heat of fusion of ice is 334xx10^3 J//kg . The amount of ice melted in one day is ( 1 day =86,000s )

Mass of a wooden piece of length 20 cm breadth 10 cm and thickness 0.5 cm is 50g. What is the density of wood ?

The two opposite faces of a cubical piece of iron (thermal conductivity = 0.2 CGS units) are at 100^(@)C and 0^(@)C in ice. If the area of a surface is 4cm^(2) , then the mass of ice melted in 10 minutes will b

A cube of side 10cm is filled with ice of density 0.9//c.c Thickness of the walls of the cube is 1mm and thermal conductivity of the material of the cube is steam bath maintained at a placed in steam bath maintained at a temperature of 100^(@)C the time in which ice completely melts is (L_(ice)=80cal//gm) .