Fat: The Fuel of Migrating Birds Small birds can migrate over long distances wit
ID: 1967732 • Letter: F
Question
Fat: The Fuel of Migrating BirdsSmall 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 gram of fat provides about 9.4 (food) Calories, compared to 4.2 (food) Calories per 1 gram of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4186 joules. Therefore, in this problem use the conversion factor .
Find , the component of the net force acting on the cat parallel to the displacement. Note that you may have already found this information while working through Part C.
Explanation / Answer
I believe you entered two questions. for the migrating bird find the joules it takes for the bird to fly 1 meter. 1 gram of fat is equal to 9.4 Cal, one Cal is 4186 J.
So 1g(fat)=9.4Cal*4186J=39,348J.
When converting to Watts remember Watt=J/s
((amount of Fat*Cal*Joules)/(Watts))*m/s= the distance the bird can fly per gram of fat
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