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Developing a more realistic model, the bioengineer models the acceleration of the snow petrl by an equation of the form a = C(1 + sin wt), where C and w are constants. From video measurements of a bird taking off, he estimates that w = 18 s-1, determines that the bird requires 1.41 s to take off, and is moving at 5.5 m/s when it does. What is the constant C?

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