Solve the all parts of given question:
Question: A whistle of frequency 527 Hz moves in a circle of radius 78.4 cm at an angular speed of 13.7 rad/s.
Part A: What are the lowest frequencies heard by a listener a long distance away, at rest with respect to the center of the circle?
Part B: What are the highest frequencies heard by a listener a long distance away, at rest with respect to the center of the circle?
I need help to solve the above question and take the speed of sound in air to be 343 m/s.