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Author Question: What is the conversion factor between km/h and m/s? A) 7.72 10-5 m/s B) 2.78 10-1 m/s C) 1.30 ... (Read 83 times)

AEWBW

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What is the conversion factor between km/h and m/s?
 
  A) 7.72  10-5 m/s
  B) 2.78  10-1 m/s
  C) 1.30  104 m/s
  D) 3.60 m/s
  E) 16.7 m/s

Question 2

A block of mass m is pushed against a spring of spring constant k. The spring is compressed by a distance d, the block is then released. It is launched by the spring along a horizontal frictionless surface with a final speed v.
 
  A second block, this one having mass 4m is pushed against the same spring and released, gaining a final speed 2v. By what distance was the spring compressed in the second case? A) d
  B) 2d
  C) 4d
  D) 16d
  E) 25d



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princessflame2016

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Answer to Question 1

B

Answer to Question 2

C




AEWBW

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

 

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