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Author Question: Reverberation is a case of A) sound interference. B) forced vibrations. C) re-echoed sound. D) ... (Read 124 times)

jazziefee

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on: Jul 29, 2018
Reverberation is a case of
 
  A) sound interference.
  B) forced vibrations.
  C) re-echoed sound.
  D) resonance.
  E) none of the above

Question 2

Electrons with a speed of 2.1  106 m/s are directed towards a 1.0-m wide slit. An electron detector is placed 1.0 m behind the slit.
 
  How wide is the central maximum of the electron diffraction pattern on the detector? (h = 6.626  10-34 J  s, melectron = 9.11  10-31 kg)
  A) 690 m
  B) 350 m
  C) 1,000 m
  D) 1,400 m
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al

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jazziefee

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Reply #2 on: Jul 29, 2018
Thanks


al

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Reply #3 on: Jul 29, 2018
Welcome :)


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