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23 Nov 2019
Human-powered aircraft require a pilot to pedal, as in a bicycle,and produce a sustained power output of about 0.290 hp. TheGossamer Albatross flew across the English Channel on June 12, 1979in 2 h 49 min.
(a) How much energy would the pilot expend on a flight lasting 164min?
(b) How many Snickers candy bars (280 Cal per bar) would the pilothave to consume to be "fueled up" for the flight? [Note: Thenutritional calorie, 1 Cal, is equivalent to 1000 calories (1000cal) as defined in physics. In addition, the conversion factorbetween calories and joules is as follows: 1 Cal = 1000 cal = 1kcal = 4186 J.]
Human-powered aircraft require a pilot to pedal, as in a bicycle,and produce a sustained power output of about 0.290 hp. TheGossamer Albatross flew across the English Channel on June 12, 1979in 2 h 49 min.
(a) How much energy would the pilot expend on a flight lasting 164min?
(b) How many Snickers candy bars (280 Cal per bar) would the pilothave to consume to be "fueled up" for the flight? [Note: Thenutritional calorie, 1 Cal, is equivalent to 1000 calories (1000cal) as defined in physics. In addition, the conversion factorbetween calories and joules is as follows: 1 Cal = 1000 cal = 1kcal = 4186 J.]
Hubert KochLv2
27 Jul 2019
