At what common temperature would a block of wood and a block of metal feel equally cold or equally hot when touched.

Two rods A and B are of equal length each rod has its end at temperature T_1 and T_2 what is the condition that will erasure equal rates of flow of heat through the rods A and B?

A block of metals weighing 2 kg and 1kg are in contact with each other on a frictionless table. When a horizontal force of 3.0N is applied to the block of mass 2 kg. The value of force constant between the blocks is

Define co-efficient of linear and cubical expansion and establish a relation between them . The length of a copper wire is measured 40 cm by a metal scale when both are at the temperature of 25^@C . What would be the length of wire measured by the same scale when both are at 55^@C ? (alpha "for metal" = 1.1 xx 10^(-7) @C^(-1) and alpha for copper = 1.7 xx 10^(-7)@c^(-1))

A body cols at the rate of 0.5^@C/s when it is at a temperature of 50^@C above the surroundings. What would be the rate of cooling when the body is at a temperature of 30^@C above the surroundings.

A body is dropped from a height of 100m. At what height the velocity of the body will be equal to one half of the velocity when it hits the ground ?

Two similar spheres each of mass m and carrying equal charges q are hung from a common point by means of two silk threads each of length / Show that the separation x between them is given by x= ((q^(2) hatl)/(2piin_0mg))^(1//3) when the angle between the threads is very small.

When a hot body warms a cool one are their temperature changes equal in magnitude ?