clist?maximum work efficiency of asteam engine?O A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in3 hr.(a) Calculate the external work done by the climber.(b) Assuming the work was done at a steady rate during the 3 hrperiod, calculate the power generated during the climb.(c) Assuming the average O2 consumption during the climb was 2liters/min (corresponding to 9.6 kcal/min), find the efficiency'ofthe hiker's body.(d) How much energy appeared as heat in the body?10. What is the anaerobic phase of work? How long will it last?11. Are humans homeothermic or poikilothermic?12 What are the main mechanisms of heat loss from the body?13. (a) Calculate the convective heat loss per hour for a nude standing ina 5 m/sec wind. Assume T = 33°C, T = 10°C, and A = 1.2 m2.(b) If the wind speed were 2.23 m/sec, find the still air temperaturethat would produce the same heat loss (the wind chill equivalenttemperature).%3Ddividual is in water the convective heat loss term is

Question 9: We have the given data: The mass is m=70 kg The height is h=1000 m Calculating the…

O A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in 3 hr. (a) Calculate the external work done by the climber. (b) Assuming the work was done at a steady rate during the 3 hr period, calculate the power generated during the climb. (c) Assuming the average O2 consumption during the climb was 2 liters/min (corresponding to 9.6 kcal/min), find the efficiency 'of the hiker's body.

O A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in 3 hr. (a) Calculate the external work done by the climber. (b) Assuming the work was done at a steady rate during the 3 hr period, calculate the power generated during the climb. (c) Assuming the average O2 consumption during the climb was 2 liters/min (corresponding to 9.6 kcal/min), find the efficiency 'of the hiker's body.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 101P: Many decisions are made on the basis of the payback period: the time it will take through savings to...

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