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Author Question: Which part of the electromagnetic spectrum has the shortest wavelength? A) radio B) infrared C) ... (Read 117 times)

jenna1

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on: Jul 29, 2018
Which part of the electromagnetic spectrum has the shortest wavelength?
 
  A) radio B) infrared C) ultraviolet D) visible E) gamma

Question 2

Are there any kinds of situations in which the momentum of a moving system is not conserved?
 
  A) No, because the momentum of any system is always conserved.
  B) Yes, if any part of the system is acted upon by forces external to the system.
  C) No, because the law of inertia demands that any moving system must keep moving.
  D) Yes, if some of the parts of the system collide with each other.
  E) Yes, if there is friction acting between different parts of the system.


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kilada

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

E

Answer to Question 2

B


jenna1

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Reply 2 on: Jul 29, 2018
:D TYSM

ktidd

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Reply 3 on: Yesterday
Gracias!

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