Body heat is brought by the blood to the bottom layer of skin at a temperature of 37°C; the outer surface of the skin is at 30°C. A 165 lb (75 kg), 6 ft (1.83 m) person has a surface area of about 2 m2 and loses heat at a net rate of 75W while resting. Assuming an average skin thickness of 0.75 mm,
what is the thermal conductivity of this person's skin?

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.