By ranking the pitches of the fire engine from highest to lowest when it is travelling towards the listener at- 30 Km/h 50 Km/h Away from the listener at 20 Km/h

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Chapter 19, Problem 44RCQ

To determine

By ranking the pitches of the fire engine from highest to lowest when it is travelling towards the listener at-

30 Km/h

50 Km/h

Away from the listener at 20 Km/h

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