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1.An ambulance is traveling east at 54.5 m/s. Behind it a car travels along the same...

1.An ambulance is traveling east at 54.5 m/s. Behind it a car travels along the same direction at 32.3 m/s. The ambulance driver hears his siren with a wavelength of 0.41 m What wavelength would a stationary observer behind the ambulance measure for the sound? The velocity of sound in air is 343 m/s. Answer in units of m

2. What wavelength would be measured on the car’s hood? Answer in units of m.

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