Giancoli's Physics: Principles with Applications, 6th Edition
22
Electromagnetic Waves
Change chapter22-1: Changing E Produces B
22-2: EM Waves
22-3 and 22-4: EM Spectrum and Speed
22-5: Energy in EM Waves
22-6: Radiation Pressure
22-7: Radio, TV
Problem 16
A
The person listening to the radio will hear the singer 0.14 s before the person in the balcony.
NOTE: the video incorrectly uses when it should instead use since the denominator of the fraction is in units of . With this correction the answer is , which rounds to , rather than the given in the video.
NOTE: the video incorrectly uses when it should instead use since the denominator of the fraction is in units of . With this correction the answer is , which rounds to , rather than the given in the video.
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COMMENTS
By thesouthportschool on Fri, 6/3/2016 - 1:27 AM
Shouldn't it be 0.04m instead of 4cm because you are working in meters?
By Mr. Dychko on Wed, 6/8/2016 - 4:25 AM
Sharp eye thesoutportschool. Thanks for spotting that. When that is corrected to use 0.04m instead of 4cm it turns out the answer becomes which rounds to , rather than the given. I've made a note about the error in the Quick Answer.
Best wishes with your studies,
Mr. Dychko
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