EBK PHYSICS OF EVERYDAY PHENOMENA
8th Edition
ISBN: 8220106637050
Author: Griffith
Publisher: YUZU
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Chapter 1, Problem 10CQ
Over the years, there have been several credible claims by experienced observers of sightings of Unidentified Flying Objects (UFOs). Despite this, scientists have shied away from taking up serious study of UFOs, although there are ongoing searches for signals from extraterrestrial intelligent beings. Can you think of reasons why scientists have not taken UFOs seriously? What problems can you see in trying to study UFOs?
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A bat flying at 5.00 m/s is chasing an insect flying in the same direction. The bat emits a 40.0 kHz chirp and receives back an echo at 40.4 kHz. Assume the speed of sound is 343 m/s.
1. What is the equation for doppler shift?
2. If you were calculating the frequency of the chirp observed by the insect, what would the value of fs be?
3. For question 2, would vo represent the velocity of the bat or the insect? Does the motion of the insect increase or decrease the frequency observed by the insect? Would vo be positive or negative?
4. For question 2, would vs represent the velocity of the bat or the insect? Would vs be positive or negative?
5. Write the doppler shift equation to find the frequency of the chirp observed by the insect. Use fi for the frequency observed by the insect and vi for the velocity of the insect. (Do not solve this equation yet.)
6. If you were calculating the frequency of the chirp observed by the bat, what would the value of f0 be?
7. For question 6, what would…
Chapter 1 Solutions
EBK PHYSICS OF EVERYDAY PHENOMENA
Ch. 1 - Prob. 1CQCh. 1 - Do trees and other green plants have any impact on...Ch. 1 - Since burning wood releases carbon dioxide to the...Ch. 1 - If the amount of carbon dioxide in the atmosphere...Ch. 1 - Has the burning of fossil fuels been taking place...Ch. 1 - Does the use of nuclear power significantly...Ch. 1 - Which of these criteria best distinguish between...Ch. 1 - Prob. 8CQCh. 1 - Historians sometimes develop theories to explain...Ch. 1 - Over the years, there have been several credible...
Ch. 1 - Prob. 11CQCh. 1 - Prob. 12CQCh. 1 - Suppose that a friend states the hypothesis that...Ch. 1 - Which of the three science fieldsbiology,...Ch. 1 - Based upon the brief descriptions provided in...Ch. 1 - Prob. 16CQCh. 1 - Suppose you are told that speed is defined by the...Ch. 1 - Impulse is defined as the average force acting on...Ch. 1 - Prob. 19CQCh. 1 - What are the primary advantages of the metric...Ch. 1 - What are the advantages, if any, of continuing to...Ch. 1 - Which system of units, the metric system or...Ch. 1 - The width of a mans hand was used as a common unit...Ch. 1 - A pirate map indicates that a treasure is buried...Ch. 1 - List the following volumes in descending order:...Ch. 1 - List the following lengths in descending order:...Ch. 1 - Prob. 1ECh. 1 - Prob. 2ECh. 1 - Prob. 3ECh. 1 - Prob. 4ECh. 1 - Prob. 5ECh. 1 - Prob. 6ECh. 1 - Prob. 7ECh. 1 - Prob. 8ECh. 1 - A mile is 5280 ft long. The sample exercise in...Ch. 1 - If a mile is 5280 ft long and a yard contains 3...Ch. 1 - Prob. 11ECh. 1 - Prob. 12ECh. 1 - Prob. 13ECh. 1 - Prob. 14ECh. 1 - Prob. 15ECh. 1 - Prob. 16ECh. 1 - Prob. 2SPCh. 1 - Prob. 3SP
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