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Author Question: A proton, which has a mass of 1.67 10-27, is moving at 0.80c relative to the laboratory. What does ... (Read 40 times)

nevelica

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on: Jul 29, 2018
A proton, which has a mass of 1.67  10-27, is moving at 0.80c relative to the laboratory. What does a physicist in that lab measure for its momentum? (c = 3.0  108 m/s)
 
  A) 4.0  10-19 kg  m/s
  B) 4.4  10-19 kg  m/s
  C) 5.0  10-19 kg  m/s
  D) 5.8  10-19 kg  m/s
  E) 6.7  10-19 kg  m/s

Question 2

Given that the speed of an electron in the ground state of hydrogen is 2190 km/s, what is the speed of an electron in the n = 4 orbit of hydrogen?
 
  A) 547 km/s
  B) 31,000 km/s
  C) 139 km/s
  D) 178 km/s
  E) 2180 km/s
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dlook33

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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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nevelica

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

jomama

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Reply 3 on: Yesterday
Wow, this really help

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