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Steve is jogging at a constant speed of 5.00 mph and encounters a hill that requires an average energy expenditure rate of 3.10 MJ/h. If the hill is 0.400 mi long, determine the mass of natural state foods that Steve must consume to replenish the energy spent climbing the hill, if he consumes

a. Only carbohydrate with an energy content of 4.20 MJ/kg.

b. Only protein with an energy content of 8.40 MJ/kg.

c. Only fat with an energy content of 33.1 MJ/kg.

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