To determine her own speed, a skydiver carries a loud buzzer that emits a steady tone at 1820 Hz. A friend at the landing site on the ground directly below her listens to the amplified sound he receives from the buzzer. Assume that the air is calm and that the speed of sound is 343 m/s, independent of altitude (not necessarily true, but a lot easier to deal with). While the skydiver is falling at terminal speed, her friend on the ground receives waves with a frequency of 2150 Hz. (a) What is the skydiver's speed of descent? (b) Suppose the skydiver is also carrying sound-receiving equipment that is sensitive enough to detect waves reflected from the ground. What frequency does she receive?
To determine her own speed, a skydiver carries a loud buzzer that emits a steady tone at 1820 Hz. A friend at the landing site on the ground directly below her listens to the amplified sound he receives from the buzzer. Assume that the air is calm and that the speed of sound is 343 m/s, independent of altitude (not necessarily true, but a lot easier to deal with). While the skydiver is falling at terminal speed, her friend on the ground receives waves with a frequency of 2150 Hz. (a) What is the skydiver's speed of descent? (b) Suppose the skydiver is also carrying sound-receiving equipment that is sensitive enough to detect waves reflected from the ground. What frequency does she receive?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:To determine her own speed, a skydiver carries a loud buzzer that emits a steady tone at 1820 Hz. A
friend at the landing site on the ground directly below her listens to the amplified sound he receives
from the buzzer. Assume that the air is calm and that the speed of sound is 343 m/s, independent of
altitude (not necessarily true, but a lot easier to deal with). While the skydiver is falling at terminal
speed, her friend on the ground receives waves with a frequency of 2150 Hz. (a) What is the skydiver's
speed of descent? (b) Suppose the skydiver is also carrying sound-receiving equipment that is
sensitive enough to detect waves reflected from the ground. What frequency does she receive?
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