Question: #9answer both a and b please (7%) Problem 9: One day when the speed of sound in air is 343 m/s, a fire truck traveling

#9answer both a and b please

(7%) Problem 9: One day when the speed of sound in air is 343 m/s, a fire truck traveling at Vs = 26 m/s has a siren which produces a frequency of fs = 417 Hz. Randomized Variables VS = 26 m/s f= 417 Hz Patel, Simran - simran.patel@doane.edu @theexpertfa.com - tracking id: 9N69-D3-16-42-9E92-40025. 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 4 50% Part (a) What frequency, in units of hertz, does the driver of the truck hear? fa = 1 Hz Grade Summary Deductions Potential 100% sin( cos() tan( JC 8 9 Submissions cotan() asin() acos() B 4 5 6 Attempts remaining: 1 83% per attempt) atan() acotan() sinh() 2 3 detailed view cosh( tanh() cotanh() + 0 END Degrees O Radians VO BACKSPACE CLEAR Submit Hint Feedback give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback 4 50% Part (b) What frequency, in units of hertz, does an observer hear when the truck is moving away

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