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Author Question: Consider a spacecraft that travels round-trip to the zeta reticuli star system (distance 39.5 ... (Read 136 times)

rl

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on: Jul 27, 2018
Consider a spacecraft that travels round-trip to the zeta reticuli star system (distance 39.5 light-years) at 99 of the speed of light.
 
  If the round-trip travel time as measured from Earth is 79.8 years, how much time would pass for passengers on the spacecraft?
  A) 39.9 years
  B) 79.8 years
  C) 22.6 years
  D) 11.3 years

Question 2

In a hydrogen atom, a given electron has l = 7. How many values can m have?
 
  A) 6
  B) 7
  C) 15
  D) 33
  E) 98


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tandmlomax84

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


rl

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

diana chang

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Reply 3 on: Yesterday
Excellent

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