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Author Question: A car moves from the point (3.0 m)x + (5.0 m)y to the point (8.0 m)x - (7.0 m)y in 2.0 s. What is ... (Read 24 times)

Bob-Dole

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A car moves from the point (3.0 m)x + (5.0 m)y to the point (8.0 m)x - (7.0 m)y in 2.0 s. What is the direction of the average velocity of the car?
 
  A)
 
  67 from the x-axis
  B)
 
  -67 from the x-axis
  C)
 
  33 from the x-axis
  D)
 
  -33 from the x-axis
  E)
 
  52 from the x-axis

Question 2

An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8.0 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4.
 
  0 cm? A)
 
  0.32 m/s
 
  B)
 
  0.64 m/s
 
  C)
 
  1.28 m/s
 
  D)
 
  2.56 m/s
 
  E)
 
  5.12 m/s



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bookworm410

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Answer to Question 1

B

Answer to Question 2

E




Bob-Dole

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


kishoreddi

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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