A 73.0-kg man is in an environment of −10.0◦C. The temperature, area, and emissivity of his skin are 33.0◦C, 1.73m2, and 0.820, respectively. Assume that his metabolic energy production is 211 J/s and his specific heat is 3.50 × 103 J/(kg K). What is the net emission power of his body? (A) 341W; (B) 321W; (C) 301W; (D) 281W; (E) 261W. What is the rate of his body temperature drop? (A) 2.39 ◦F/hr; (B) 2.59 ◦F/hr; (C) 2.79 ◦F/hr; (D) 2.99 ◦F/hr; (E) 3.19 ◦F/hr.

A 73.0-kg man is in an environment of −10.0◦C. The temperature, area, and emissivity of his skin are 33.0◦C, 1.73m2, and 0.820, respectively. Assume that his metabolic energy production is 211 J/s and his specific heat is 3.50 × 103 J/(kg K). What is the net emission power of his body? (A) 341W; (B) 321W; (C) 301W; (D) 281W; (E) 261W. What is the rate of his body temperature drop? (A) 2.39 ◦F/hr; (B) 2.59 ◦F/hr; (C) 2.79 ◦F/hr; (D) 2.99 ◦F/hr; (E) 3.19 ◦F/hr.