The power P required for level flight by an airplane is a function of the speed u of flight. Consideration of drag on the plane yields the following model. Here a and b are constants that depend on the characteristics of the airplane. This model may also be applied to the flight of a bird such as the budgerigar (a type of parakeet), where we take a = 7800 and b = 600. Here the flight speed u is measured in kilometers per hour, and the power Pis the rate of oxygen consumption in cubic centimeters per gram per hour. (a) Make a graph of P as a function of u for the budgerigar. Include flight speeds between 25 and 45 kilometers per hour.

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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The power P required for level flight by an airplane is a function of the speed u of flight. Consideration of drag on the plane yields the following model.
u3
P =
a
Here a and b are constants that depend on the characteristics of the airplane. This model may also be applied to the flight of a bird such as the budgerigar (a type of parakeet), where we take a = 7800 and b = 600. Here the flight speed u is measured in kilometers per hour, and the
power P is the rate of oxygen consumption in cubic centimeters per gram per hour.t
(a) Make a graph of P as a function of u for the budgerigar. Include flight speeds between 25 and 45 kilometers per hour.
P
40
25
35
20
30
15
25
10
20아
5
u
50
u
25
30
35
40
45
5
10
15
20
25
30
P
P
25
40
20
35
15
30아
10
25
5
20
u
30
5
10
15
20
25
25
30
35
40
45
50
(b) Calculate P(35). (Round your answer to two decimal places.)
P(35) = |
Explain what your answer means in practical terms.
If a budgerigar flies at a speed of 35 kilometers per hour, then the power required for level flight is
cubic centimeters of oxygen per gram per hour.
(c) At what flight speed is the required power minimized? (Round your answer to two decimal places.)
km/hr
Transcribed Image Text:The power P required for level flight by an airplane is a function of the speed u of flight. Consideration of drag on the plane yields the following model. u3 P = a Here a and b are constants that depend on the characteristics of the airplane. This model may also be applied to the flight of a bird such as the budgerigar (a type of parakeet), where we take a = 7800 and b = 600. Here the flight speed u is measured in kilometers per hour, and the power P is the rate of oxygen consumption in cubic centimeters per gram per hour.t (a) Make a graph of P as a function of u for the budgerigar. Include flight speeds between 25 and 45 kilometers per hour. P 40 25 35 20 30 15 25 10 20아 5 u 50 u 25 30 35 40 45 5 10 15 20 25 30 P P 25 40 20 35 15 30아 10 25 5 20 u 30 5 10 15 20 25 25 30 35 40 45 50 (b) Calculate P(35). (Round your answer to two decimal places.) P(35) = | Explain what your answer means in practical terms. If a budgerigar flies at a speed of 35 kilometers per hour, then the power required for level flight is cubic centimeters of oxygen per gram per hour. (c) At what flight speed is the required power minimized? (Round your answer to two decimal places.) km/hr
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