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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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Posts: 3587
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7 years ago
Sonar is used to determine the speed of an object.  A 40.0-kHz signal is sent out, and a 42.0-kHz signal is returned.  If the speed of sound is 345 m/s, how fast is the object moving?
A) 6.9 m/s
B) 8.4 m/s
C) 331 m/s
D) 347 m/s
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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slicealemonslicealemon
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#1
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7 years ago Edited: A year ago, bio_man
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Chery Author
wrote...
#2
7 years ago
You're right again!

Appreciate it
wrote...
#3
7 years ago
Are you doing the questions found at the end of the chapter? They should help you with the others too
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#4
4 years ago
thanks
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#5
4 years ago
thank you!
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#6
3 years ago
Thanks
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#7
3 years ago
Thanks mate
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#8
3 years ago
Thank you
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#9
3 years ago
Thank you
wrote...
#10
3 years ago
thanks!
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