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Physics, 22.04.2020 02:40, Nathaliasmiles
Small birds can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 Calories, compared to 4.20 Calories per 1.00 grams of carbohydrate. a) Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W. Assume that the bird consumes 4.00 g of fat, how far will the bird fly before feeding again? (b) How many grams of carbohydrate would the bird have to consume to travel the same distance. (c) Field observations suggest that a migrating ruby-throated hummingbird can fly across the Gulf of Mexico on a nonstop flight traveling a distance of about 800 km. Assuming that the bird has an average speed of 40.0 km/hr and an average power consumption of 1.70 W, how many grams of fat does a ruby-throated hummingbird need to accomplish the nonstop flight across the Gulf of Mexico?
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Small birds can migrate over long distances without feeding, storing energy mostly as fat rather tha...
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