A 500-Hz whistle is moved toward a listener at a speed of 10.0 m/s. At the same time, the listener moves at a speed of 20.0 m/s in a direction toward the whistle. What is the apparent frequency heard by the listener? (The speed of sound is 340 m/s.)
a. 473 Hz
c. 533 Hz
b. 485 Hz
d. 545 Hz
D
Physics & Space Science
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Some astronomers speculate there are as many Trojan asteroids around Jupiter as asteroids in the asteroid belt
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
Human hearing is best in
A) infrasonic sound. B) ultrasonic sound. C) both of these D) neither of these
Physics & Space Science
An Olympic skier moving at 19.5 m/s down a 17.0° slope encounters a region of wet snow, of coefficient of friction ?k = 0.740 . How far down the slope does she go before stopping?
a. 56.7 m b. 46.7 m c. 56.1 m d. 36.7 m e. 37.4 m
Physics & Space Science
If it is midnight in New York, it is
A) daytime in Sydney, Australia. B) midnight in Sydney, Australia. C) midnight in Los Angeles. D) midday in Rio de Janeiro, Brazil. E) midnight everywhere.
Physics & Space Science