Top Posters
Since Sunday
g
2
2
Home Q & A Board Science-Related Homework Help Physics
New Topic  
Chery Chery
wrote...
Go to Answer
Posts: 3587
Rep: 26 1
8 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:
Read 936 times
10 Replies
Replies
Answer verified by a subject expert
slicealemonslicealemon
wrote...
#1
Top Poster
Posts: 930
Rep: 159 2
8 years ago Edited: 2 years ago, bio_man
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here

Related Topics

Chery Author
wrote...
#2
8 years ago
You're right again!

Appreciate it
wrote...
#3
8 years ago
Are you doing the questions found at the end of the chapter? They should help you with the others too
wrote...
#4
5 years ago
thanks
wrote...
#5
5 years ago
thank you!
wrote...
#6
4 years ago
Thanks
wrote...
#7
4 years ago
Thanks mate
wrote...
#8
4 years ago
Thank you
wrote...
#9
4 years ago
Thank you
wrote...
#10
4 years ago
thanks!
New Topic      
Quick Reply
Bold
Italic
Underline
Strikethrough
Subscript
Superscript
Insert Math Equation
Font Name
Font Color
Align left
Center
Align right
Bullet list
Numbered list
Insert a horizontal rule
Insert a table
Insert a Quote
View source
Explore
Post your homework questions and get free online help from our incredible volunteers
  581 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 308
  
 617
  
 345
Your Opinion
Previous poll results: What's your favorite funny biology word?