Problem 7: Mountain climbers carry bottled oxygen when at very high altitudes, since the atmosphere contains less and

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Problem 7: Mountain climberscarry bottled oxygen when at very high altitudes, since theatmosphere contains less and less as you go higher up.
Part (a) Assuming that a mountainclimber uses 3.92 liters of oxygen per minute, calculate how manyliters of oxygen a climber would need for 9.5 h ofclimbing. (These are liters at sea level.) Note that only 40% ofthe inhaled oxygen is utilized; the rest isexhaled. VO =
Part (b) How much useful work doesthe climber do, in joules, if he and his equipment have a massof 87.5 kg and he gains 1200 m ofaltitude? Wout =
Part (c) What is his efficiency forthe 9.5-h climb? Assume his total energy consumption is 1370W.
η (%) =