366307 A liquid of mass \(m\) and specific heat \(c\) is heated to a temperature \(2\;T\). Another liquid of mass \(m/2\) and specific heat \(2c\) is heated to temperature \(T\). If these two liquids are mixed, the resulting temperature of the mixture is:

366308 \(0.1\;{m^3}\) of water at \(80^\circ C\) is mixed with \(0.3\;{m^3}\)of water at \(60^\circ C\). The final temperature of the mixture is

366309 A \(10\;kW\) drilling machine is used to drill a bore in a small aluminium block of mass \(8.0\;kg\). How much is the rise in temperature of the block in 2.5 minutes, assuming \(50 \%\) of power is used up in heating the machine itself or lost to the surroundings? Specific heat of aluminium\( = 0.91\;J/g^\circ C\).

366310 Four spheres \(A,\,B,\,C\) and \(D\) have their radii in arithmetic progression and the specific heat capacities of their substances are geometric progression. If the ratios of heat capacities of \(D\) and \(B\) to that of \(C\) and \(A\) are as \(8: 27\) the ratio of masses of \(B\) and \(A\) is (Assume same density for all spheres)

366307 A liquid of mass \(m\) and specific heat \(c\) is heated to a temperature \(2\;T\). Another liquid of mass \(m/2\) and specific heat \(2c\) is heated to temperature \(T\). If these two liquids are mixed, the resulting temperature of the mixture is:

366308 \(0.1\;{m^3}\) of water at \(80^\circ C\) is mixed with \(0.3\;{m^3}\)of water at \(60^\circ C\). The final temperature of the mixture is

366309 A \(10\;kW\) drilling machine is used to drill a bore in a small aluminium block of mass \(8.0\;kg\). How much is the rise in temperature of the block in 2.5 minutes, assuming \(50 \%\) of power is used up in heating the machine itself or lost to the surroundings? Specific heat of aluminium\( = 0.91\;J/g^\circ C\).

366310 Four spheres \(A,\,B,\,C\) and \(D\) have their radii in arithmetic progression and the specific heat capacities of their substances are geometric progression. If the ratios of heat capacities of \(D\) and \(B\) to that of \(C\) and \(A\) are as \(8: 27\) the ratio of masses of \(B\) and \(A\) is (Assume same density for all spheres)

366307 A liquid of mass \(m\) and specific heat \(c\) is heated to a temperature \(2\;T\). Another liquid of mass \(m/2\) and specific heat \(2c\) is heated to temperature \(T\). If these two liquids are mixed, the resulting temperature of the mixture is:

366308 \(0.1\;{m^3}\) of water at \(80^\circ C\) is mixed with \(0.3\;{m^3}\)of water at \(60^\circ C\). The final temperature of the mixture is

366309 A \(10\;kW\) drilling machine is used to drill a bore in a small aluminium block of mass \(8.0\;kg\). How much is the rise in temperature of the block in 2.5 minutes, assuming \(50 \%\) of power is used up in heating the machine itself or lost to the surroundings? Specific heat of aluminium\( = 0.91\;J/g^\circ C\).

366310 Four spheres \(A,\,B,\,C\) and \(D\) have their radii in arithmetic progression and the specific heat capacities of their substances are geometric progression. If the ratios of heat capacities of \(D\) and \(B\) to that of \(C\) and \(A\) are as \(8: 27\) the ratio of masses of \(B\) and \(A\) is (Assume same density for all spheres)

366307 A liquid of mass \(m\) and specific heat \(c\) is heated to a temperature \(2\;T\). Another liquid of mass \(m/2\) and specific heat \(2c\) is heated to temperature \(T\). If these two liquids are mixed, the resulting temperature of the mixture is:

366308 \(0.1\;{m^3}\) of water at \(80^\circ C\) is mixed with \(0.3\;{m^3}\)of water at \(60^\circ C\). The final temperature of the mixture is

366309 A \(10\;kW\) drilling machine is used to drill a bore in a small aluminium block of mass \(8.0\;kg\). How much is the rise in temperature of the block in 2.5 minutes, assuming \(50 \%\) of power is used up in heating the machine itself or lost to the surroundings? Specific heat of aluminium\( = 0.91\;J/g^\circ C\).

366310 Four spheres \(A,\,B,\,C\) and \(D\) have their radii in arithmetic progression and the specific heat capacities of their substances are geometric progression. If the ratios of heat capacities of \(D\) and \(B\) to that of \(C\) and \(A\) are as \(8: 27\) the ratio of masses of \(B\) and \(A\) is (Assume same density for all spheres)