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Author Question: What is the wavelength in the Balmer series for n = 15? A) 277.1 nm B) 371.1 nm C) 188.6 nm D) ... (Read 147 times)

jerry coleman

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on: Jul 29, 2018
What is the wavelength in the Balmer series for n = 15?
 
  A) 277.1 nm
  B) 371.1 nm
  C) 188.6 nm
  D) 656 nm
  E) 754.2 nm

Question 2

A set of twins, Andrea and Courtney, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a spaceship that travels away from Earth at a speed of 0.60c for 10 years (as measured by Courtney).
 
  At the end of the trip, Courtney is 20 years old. How old is Andrea? A) 10 years
  B) 12 years
  C) 18 years
  D) 20 years
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Perkypinki

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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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jerry coleman

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


Perkypinki

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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