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Author Question: As the ball is going downwards a. the velocity and acceleration both point up b. the velocity ... (Read 196 times)

genevieve1028

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on: Jul 28, 2018
As the ball is going downwards
 a. the velocity and acceleration both point up
  b. the velocity points up and the acceleration down
  c. the velocity points down and the acceleration up
  d. the velocity and acceleration both point down
  e. the acceleration is zero

Question 2

Diffraction takes place:
 a. on highly reflective surfaces.
  b. on rough surfaces.
  c. around the edges of barriers.
  d. for waves moving through empty space.
  e. in the center of shadows.


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peilian

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

c


genevieve1028

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Reply #2 on: Jul 28, 2018
Thanks


peilian

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Reply #3 on: Jul 28, 2018
Welcome :)


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