The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 250 j/s. the energy is transferred a distance of 2.1 × 10-3 m through a body whose surface area is 1.9 m2. assuming that the thermal conductivity is that of body fat, determine the temperature difference between the capillaries and the surface of the skin.

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.