K previous l 31 of 31 return to a- Problem 12.45 Part A It is important for the

Question

K previous l 31 of 31 return to a- Problem 12.45 Part A It is important for the body to have mechanisms to effectively cool itself, if not, moderate exercise could easily increase body temperatures to dangerous levels. Suppose a 70 kg man runs on a treadmill for 40 min, using a metabolic power of 1000 W. Assume that all of this power goes to thermal energy in the body If he couldn't perspire or otherwise cool his body, by how much would his body temperature ise during this exercise? Express your answer using two significant figures. Submit My Answers Give Up Incorrect; Try Again; no points deducted Provide Eeedback Cont

Explanation / Answer

problem 12.45:

energy provided to the body=power*time=1000*(40*60 seconds)=24*10^5 J

specific heat of human body=3500 J/(kg.K)

the rise of temperature=energy provided/(mass*specific heat of human body)

=24*10^5/(70*3500)=9.7959 degree celcius

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