1. Christine, an aspiring lawyer, notices that, over the past year, she has added 10.0 lbm (4.54 kg) of excess body fat, and she decides to work off this extra weight by jogging each evening after work without changing her eating habits. She works 8.00 hours per day (including weekends) with an energy expenditure rate of 0.600 MJ/h. The time spent not working or jogging is spent sleeping or watching television at 0.300 MJ/h.
Christine eats two of the following meals per day, seven days per week: one baked potato with cheese, one lettuce salad with French dressing, and one pint of skim milk, plus she consumes 1.00 MJ per day of munchies while working. How many hours must she jog each night for three weeks to loose the extra 10.0 pounds?
2. Do you eat like a bird? How much birdseed would a 70.0 kg person have to eat in a day to consume proportionally as much birdseed as does a 0.0120 kg sedentary canary per day? Birdseed contains 60.0% carbohydrate, 12.0% protein, 6.0% fat, and 22.0% water.