answer both parts please

(7%) Problem 8: Suppose an oncoming ambulance moving at 105 km/h emits a steady 795-Hz sound from its siren. Forbes, David - david forbes@doane.edu @theexpertta.com - tracking id: 9N69-72-B9-45-AB7A-36840. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D A 50% Part (a) What frequency, in units of hertz, is received by a person watching the oncoming ambulance? The speed of sound on this day is 345 m/s. Grade Summary fobs,i = 1 Hz Deductions 0% Potential 100% sinO cos() tan() 7 8 9 HOME Submissions asin() acos() E 5 6 Attempts remaining: 1 cotan() 4 83 % per attempt) atan() acotan( sinh() 2 3 detailed view cosh tanh() cotanh() + 0 END Degrees O Radians VO BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. A 50% Part (b) What frequency, in units of hertz, does she observe after the ambulance has passed? All content @ 2023 Expert TA, LLC