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Author Question: A fast spaceship is traveling with a speed of 0.80c. How fast would light travel from the headlights ... (Read 303 times)

storky111

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on: Jul 29, 2018
A fast spaceship is traveling with a speed of 0.80c. How fast would light travel from the headlights of the ship relative to a stationary observer?
 
  A)
 
  0.20c
  B)
 
  0.80c
  C)
 
  1.0c
  D)
 
  1.2c
  E)
 
  1.8c

Question 2

The coefficient of linear expansion of lead is 29  10-6K-1. What change in temperature will cause a 10-m long lead bar to change in length by 3.0 mm?
 
  A)
 
  5.0 K
 
  B)
 
  10 K
 
  C)
 
  15 K
 
  D)
 
  20 K
 
  E)
 
  25 K


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GCabra

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


storky111

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Reply #2 on: Jul 29, 2018
Thank you!


GCabra

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Reply #3 on: Jul 29, 2018
Always glad to help...


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