To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800 Hz. A friend on the ground at the landing site directly below listens to the amplified sound he receives. Assume the air is calm and the speed of sound is independent of altitude. While the skydiver is falling at terminal speed, her friend on the ground receives waves of frequency 2 172 Hz. (Use 343 m/s as the speed of sound.)
(a) What is the skydiver's speed of descent?
m/s
(b) Suppose the skydiver can hear the sound of the buzzer reflected
from the ground. What frequency does she receive?
Hz
To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800...
61. To measure her speed, a skydiver carries a buzzer emit- M ting a steady tone at 1 800 Hz. A friend on the ground at the landing site directly below listens to the ampli- fied sound he receives. Assume the air is calm and the speed of sound is independent of altitude. While the skydiver is falling at terminal speed, her friend on the ground receives waves of frequency 2 150 Hz. (a) What is the skydiver's speed of...
4. In a large lecture hall, the professor uses a microphone and her voice is amplified over two speakers located at the front of the fall in the upper right and left corners. The speakers are separated by a distance of D-15 meters. You pick a spot in the hall that is located Si-13.0 meters from the right speaker and S 12.5 meters from the left speaker. Assume the speed of sound is 343 m/s. Assuming the speakers are connected...