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Author Question: In a cloud formation, water vapor condenses into water droplets which get bigger and bigger until it ... (Read 171 times)

darbym82

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on: Jul 29, 2018
In a cloud formation, water vapor condenses into water droplets which get bigger and bigger until it rains. This will cause the temperature of the air in the clouds to
 
  A)
 
  increase.
 
  B)
 
  decrease.
 
  C)
 
  stay constant.
 
  D)
 
  freeze.

Question 2

A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite direction at 3.8 m/s. If the collision is perfectly elastic, what is the change in the kinetic energy of the 620-g object?
 
  A)
 
  It loses 0.23 J.
  B)
 
  It gains 0.69 J.
  C)
 
  It loses 0.47 J.
  D)
 
  It loses 1.4 J.
  E)
 
  The energy of the object is unchanged.


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jennafosdick

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

A

Answer to Question 2

A


darbym82

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Reply #2 on: Jul 29, 2018
TY


jennafosdick

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Reply #3 on: Jul 29, 2018
You're welcome


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