|Oct19-07, 06:33 PM||#1|
calorie work power
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.
(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. =(
|Oct19-07, 10:04 PM||#2|
can you show your steps?
|Oct20-07, 12:03 PM||#3|
i ended up figurin out the solution.
thanks for the help anyways.
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