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Author Question: If light excites atomic hydrogen from its lowest energy level to the n = 12 level, what is the ... (Read 96 times)

penguins

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on: Jul 29, 2018
If light excites atomic hydrogen from its lowest energy level to the n = 12 level, what is the energy of the photons of this light?
 
  A) 13.5 eV
  B) 32.2 eV
  C) 13.6 eV
  D) 0.0944 eV
  E) 1.13 eV

Question 2

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the momentum during the collision are correct? (There could be more than one correct choice.)
 
  A) The momentum of the truck is conserved.
  B) The momentum of the car is conserved.
  C) The car and the truck must undergo the same change in speed.
  D) The momentum of the car and the momentum of the truck are each conserved.
  E) The momentum of the car-truck system is conserved, but the momentum of each one separately is not conserved.
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Liddy

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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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penguins

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Reply 2 on: Jul 29, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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