366303 A \(100\,g\) of iron nail is hit by a \(1.5\,kg\) hammer striking at a velocity of \(60\;m{s^{ - 1}}\). What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail? (Given specific heat of iron \( = 420\;J/(kg\,^\circ C)\))

366304 Two identical rods of copper and iron are coated with wax uniformly. When one end of each is kept at temperature of boiling water, the length upto which wax melts are \(7.2\;cm\) and \(3.6\;cm\) respectively. If thermal conductivity of copper is \(0.92,\) then what is the thermal conductivity of iron?

366305 Two liquids \(A\) and \(B\) are at \(32^\circ C\) and \(24^\circ C\). When mixed in equal masses the temperature of the mixture is found to be \(28^\circ C\). Their specific heats are in the ratio of

366306 A copper calorimeter of mass \(1.5\;kg\) has \(200\;g\) of water at \(25^\circ C\). How much water (approx) at \(50^\circ C\) is required to be poured in the calorimeter, so that the equilibrium temperature attained is \(40^\circ C\)? (Specific heat of copper \( = 390\;J/kg^\circ C\) )

366303 A \(100\,g\) of iron nail is hit by a \(1.5\,kg\) hammer striking at a velocity of \(60\;m{s^{ - 1}}\). What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail? (Given specific heat of iron \( = 420\;J/(kg\,^\circ C)\))

366304 Two identical rods of copper and iron are coated with wax uniformly. When one end of each is kept at temperature of boiling water, the length upto which wax melts are \(7.2\;cm\) and \(3.6\;cm\) respectively. If thermal conductivity of copper is \(0.92,\) then what is the thermal conductivity of iron?

366305 Two liquids \(A\) and \(B\) are at \(32^\circ C\) and \(24^\circ C\). When mixed in equal masses the temperature of the mixture is found to be \(28^\circ C\). Their specific heats are in the ratio of

366306 A copper calorimeter of mass \(1.5\;kg\) has \(200\;g\) of water at \(25^\circ C\). How much water (approx) at \(50^\circ C\) is required to be poured in the calorimeter, so that the equilibrium temperature attained is \(40^\circ C\)? (Specific heat of copper \( = 390\;J/kg^\circ C\) )

366303 A \(100\,g\) of iron nail is hit by a \(1.5\,kg\) hammer striking at a velocity of \(60\;m{s^{ - 1}}\). What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail? (Given specific heat of iron \( = 420\;J/(kg\,^\circ C)\))

366304 Two identical rods of copper and iron are coated with wax uniformly. When one end of each is kept at temperature of boiling water, the length upto which wax melts are \(7.2\;cm\) and \(3.6\;cm\) respectively. If thermal conductivity of copper is \(0.92,\) then what is the thermal conductivity of iron?

366305 Two liquids \(A\) and \(B\) are at \(32^\circ C\) and \(24^\circ C\). When mixed in equal masses the temperature of the mixture is found to be \(28^\circ C\). Their specific heats are in the ratio of

366306 A copper calorimeter of mass \(1.5\;kg\) has \(200\;g\) of water at \(25^\circ C\). How much water (approx) at \(50^\circ C\) is required to be poured in the calorimeter, so that the equilibrium temperature attained is \(40^\circ C\)? (Specific heat of copper \( = 390\;J/kg^\circ C\) )

366303 A \(100\,g\) of iron nail is hit by a \(1.5\,kg\) hammer striking at a velocity of \(60\;m{s^{ - 1}}\). What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail? (Given specific heat of iron \( = 420\;J/(kg\,^\circ C)\))

366304 Two identical rods of copper and iron are coated with wax uniformly. When one end of each is kept at temperature of boiling water, the length upto which wax melts are \(7.2\;cm\) and \(3.6\;cm\) respectively. If thermal conductivity of copper is \(0.92,\) then what is the thermal conductivity of iron?

366305 Two liquids \(A\) and \(B\) are at \(32^\circ C\) and \(24^\circ C\). When mixed in equal masses the temperature of the mixture is found to be \(28^\circ C\). Their specific heats are in the ratio of

366306 A copper calorimeter of mass \(1.5\;kg\) has \(200\;g\) of water at \(25^\circ C\). How much water (approx) at \(50^\circ C\) is required to be poured in the calorimeter, so that the equilibrium temperature attained is \(40^\circ C\)? (Specific heat of copper \( = 390\;J/kg^\circ C\) )