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Vehicle A is moving to the right at 139 km/h. It sounds its hooter at vehicles...

Vehicle A is moving to the right at 139 km/h. It sounds its hooter at vehicles B and C. Vehicle B is moving to the right at 110 km/h. Vehicle C is at rest (see figure below). The frequency of vehicle A’s hooter is 583 Hz. Given: vsound = 343 m.s-1

A. What is the frequency heard by the passengers of vehicle B? Units: Hz

B. What is the frequency heard by the passengers of vehicle C? Units: Hz

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