Blood can carry excess energy from the interior to the surface of the body, where the energy is dispersed in a number of ways. While a person is exercising, 0.4 kg of blood flows to the body's surface and releases 1620 J of energy. The blood arriving at the surface has the temperature of the body's interior, 36.9 °C. Assuming that blood has the same specific heat capacity as water, determine the temperature of the blood that leaves the surface and returns to the interior.
answer in C