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Author Question: When all the colors of the rainbow can be seen in a spectrum and no individual bright or dark lines ... (Read 58 times)

asan beg

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on: Jul 28, 2018
When all the colors of the rainbow can be seen in
  a spectrum and no individual bright or dark lines
  are visible, the spectrum is called
  a)an emission spectrum.
  b)a continuous spectrum.
  c)a chromatic spectrum.
  d)an absorption spectrum.

Question 2

An 8.0-kg object moving 4.0 m/s in the positive x direction has a one-dimensional collision with a 2.0-kg object moving 3.0 m/s in the opposite direction. The final velocity of the 8.0-kg object is 2.0 m/s in the positive x direction. What is the total kinetic energy of the two-mass system after the collision?
 a. 32 J
  b. 52 J
  c. 41 J
  d. 25 J
  e. 29 J


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jliusyl

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

b

Answer to Question 2

c


asan beg

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

bigcheese9

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

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