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Calorie work power

  1. Oct 19, 2007 #1
    1. The problem statement, all variables and given/known data

    (a) If you follow a diet of 2000 food calories per day (2000 kilocalories), what is your average power consumption in watts? (A food or "large" calorie is a unit of energy equal to 4.2 103 J; a regular or "small" calorie is equal to 4.2 J.) Note for comparison that the power consumption in a table lamp is typically about 100 watts.
    _______ watts
    (b) How many days of a diet of 2000 large calories are equivalent to the gravitational energy change from sea level to the top of Mount Everest, 8848 m above sea level? Assume your weight is 68 kg. (The body is not anywhere near 100% efficient in converting chemical energy into change in altitude. Also note that this is in addition to your basal metabolism.)

    2. Relevant equations

    Power = Work / delta T

    3. The attempt at a solution

    i tried to find the power based on the calories being large and for when they are small. then i averaged the two powers. it didnt seem to work out though. =(
  2. jcsd
  3. Oct 19, 2007 #2


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    Homework Helper

    can you show your steps?
  4. Oct 20, 2007 #3
    i ended up figurin out the solution.
    thanks for the help anyways.
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