. Which one of the following does not involve the Doppler effect?   a. a plane becomes louder as it approaches   b. the change in the pitch of a train whistle as the train approaches and moves away    c. the radar systems used by police to monitor your speed   d. a shift in apparent color of a star moving away from the earth

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Q: What is the x-intercept of the line: 8x +5y =-16 O (8, 0) O (-16/5, 0) O (-8/5, 0) O (-2, 0)

A: To find x-intercept set y=0 in the equation.

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Q: Questions 7-11. An online poll of 810 adults found that 53% of the respondents think critical…

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Q: -3x2 54x Let f(x) = f'(x) = x² – 9' -162(x2 + 3) (x² – 9)3 (x² – 9)² ’ and f"(x) =

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