Two bicycles approach one another, each traveling with a speed of 8.50 m/s. (a) If bicyclist A beeps a 315-Hz horn, what frequency is heard by bicyclist B? (b) Which of the following would cause the greater increase in the frequency heard by bicyclist B: (i) bicyclist A speeds up by 1.50 m/s, or (ii) bicyclist B speeds up by 1.50 m/s? Explain.
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