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Author Question: A billiard ball collides in an elastic head-on collision with a second identical ball. What is the ... (Read 100 times)

tiffannnnyyyyyy

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on: Jul 28, 2018
A billiard ball collides in an elastic head-on collision with a second identical ball. What is the kinetic energy of the system after the collision compared to that before collision?
 a. the same as
  c. twice
  b. one fourth
  d. four times

Question 2

I wish to use a positively charged rod to charge a ball by induction. Which statement is correct?
 a. The ball is charged as the area of contact between the two increases.
  b. The ball must be a conductor.
  c. The ball must be an insulator that is connected temporarily to the ground. d. The charge on the ball will be positive.


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Ptupou85

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

A

Answer to Question 2

B


tiffannnnyyyyyy

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Reply 2 on: Jul 28, 2018
:D TYSM

Jsherida

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

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