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At least how many Calories does a mountain climber need in order to climb from sea level to the top of a 4.06 km tall peak assuming the muscles of the climber can convert chemical energy to mechanical energy with an efficiency of 15.0 percent. The total mass of the climber and the equipment is 77.0 kg. (Enter your answer as a number without units.)

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Ec = 6220.56 kcal

Then, you utilize the way that just 16.0% of the substance energy is convert to mechanical energy. The energy determined in the situation (2) is comparable to the mechanical energy of the climber. Then, you have the accompanying connection for the Calories required: