A hammer of mass `1 kg` having speed of `50 m//s`, hit a iron nail of mass `200 gm`. If specific heat of iron is `0.105 cal//gm^(@)C` and half the energy is converted into heat, the raise in temperature of nail is

A solid ball of mass 10 kg at 40^(@)C is gently placed in a liquid of mass 20 kg at 20^(@)C and of specific heat capacity 1 cal//gm-^(@)C . When the thermal equilibrium is attained, temperature of the system is 35^(@)C . The specific heat capacity of solid ball is. Neglect heat capacity of the vessel.

A copper block of mass 500 gm and specific heat 0.1cal//gm^(@)C is heated from 30^(@)C to 290^(@)C , the thermal capacity of the block is

A copper block of mass 500 gm and specific heat 0.1 cal//gm^@C heated from 30^@ C to 290^@ C , the thermal capacity of the block is

10 gm of ice at – 20^(@)C is added to 10 gm of water at 50^(@)C . Specific heat of water = 1 cal//g–.^(@)C , specific heat of ice = 0.5 cal//gm-.^(@)C . Latent heat of ice = 80 cal/gm. Then resulting temperature is -

A hole is made in a piece of iron of mass 200 g with the help of a 186.5 W drill. If half of the energy consumed is absorbed as heat by the piece of iron, what will be the increase in its temperature in 1 min? Specific heat of iron = 0.11 cal cdot g^(-1) cdot^(@)C^(-1) .

The specific heat of a substance is 0.09cal//gm^(@)C . If the temperature is measured on Fahrenheit scale the value of its specific heat in cal//gm//""^(@)F is

A hammer of mass 4 kg, falling from a height of 50 cm, hits a nail, partially fixed on a surface, and stops in 0.1 s. find the force exerted on the nail in N.