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Author Question: A 75-N object is pulled on a horizontal surface by a horizontal pull of 50 N to the right. The ... (Read 67 times)

nummyann

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on: Jul 29, 2018
A 75-N object is pulled on a horizontal surface by a horizontal pull of 50 N to the right. The friction force exerted on this object is 30 N to the left. What is the acceleration of the object?
 
  A) 0.27 m/s2
  B) 1.1 m/s2
  C) 2.6 m/s2
  D) 11 m/s2

Question 2

Which one of the following does not contribute to the problem of greenhouse-effect heating of the atmosphere?
 
  A) automobile engines
  B) wood stoves
  C) nuclear power plants
  D) coal-burning power plants
  E) Actually, all of the above contribute to the problem.


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shaikhs

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

C


nummyann

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Reply 2 on: Jul 29, 2018
Wow, this really help

patma1981

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Reply 3 on: Yesterday
Excellent

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