Question: Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person. The frequency

Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person. The frequency of one of the ultrasonic waves is 70 kHz. What are
(a) The smallest possible
(b) The largest possible value for the frequency of the other ultrasonic wave?

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