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Many birds can attain very high speeds when diving. Using radar, scientists measured the altitude of a barn swallow in a vertical dive; it dropped 208 m in 3.0 s. The mass of the swallow was estimated to be 0.018 kg, and its cross-section area as 5.6Γ10β4m2. What was the drag coefficient for this swallow as it dove?
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Many birds can attain very high speeds when diving. Using radar, scientists measured the altitude of...
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