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Author Question: Has there ever been a situation in which a given quantity of matter was turned completely into ... (Read 43 times)

audie

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on: Jul 29, 2018
Has there ever been a situation in which a given quantity of matter was turned completely into non-material forms of energy?
 
  A) Yes, in electron-positron pair production.
  B) Yes, in all three of the above types of experiments.
  C) Yes, in electron-positron annihilation.
  D) Yes, in nuclear fission and fusion.
  E) No, there must always be some matter left over.

Question 2

A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 kg and is under a tension of 2000 N.
  (a) What is the speed of the wave on the wire?
  (b) Find the frequency of this wave.
 
  What will be an ideal response?


tuate

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

C

Answer to Question 2

(a) 200 m/s (b) 400 Hz


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