Solve

Here are some quick questions about the Doppler effect. For each of these problems, assume that the speed of sound in air is 330 m/s. 1. Humans can detect sound waves at a maximum frequency of 20 kHz. A certain dog whistle emits a frequency of 22 kHz. A personina moving car blows the dog whistle. A second person standing by the road might hear the dog whistle If: a. the car is moving away from him at 33 m/s | b. the car is moving away from him at 30 m/s c. the car is moving toward him at 33 m/s d. the car is moving toward him at 30 m/s . Now lets take the dog whistle from the prior problem and give it to the person on the ground. The person in the car now just hears the whistle while driving. The speed of the car iS . faster than the prior problem. . the same speed as the prior problem. . slower than the prior problem. . Itis impossible for the driver of the car to hear the whistle