If a 74.0 hiker eats one of these bars, how high a mountain must he climb to "work off" the calories, assumin?
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If a 74.0 hiker eats one of these bars, how high a mountain must he climb to "work off" the calories, assuming that all the food energy goes only into increasing ...show more
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Answer:
This is obviously a physics problem that you didn't type in completely...I assume you meant a 74 kg hiker, and if the bar has 135 kcal, and the conversion rate is 4.186 kJ/kcal, then there are 564,840 J in the bar. Although this is in the wrong section I can help you. P = mgh, thus 564840 J=(74 kg)*(9.8 m/s^2)*h Thus h = 778.87 m. The mountain must be about 779 m or 2556 feet high.
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