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Author Question: The length of a spaceship is 14 m when it is at rest. If the spaceship travels by you with a speed ... (Read 135 times)

bobbysung

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  • Posts: 519
on: Jul 29, 2018
The length of a spaceship is 14 m when it is at rest. If the spaceship travels by you with a speed of 0.80c, what length does it appear to you?
 
  A)
 
  6.3 m
  B)
 
  8.4 m
  C)
 
  18 m
  D)
 
  20 m
  E)
 
  22 m

Question 2

When a bimetallic strip is cooled, the strip will bend toward the side
 
  A)
 
  with the larger coefficient of linear expansion.
  B)
 
  with the smaller coefficient of linear expansion.
  C)
 
  with the higher temperature.
  D)
 
  with the lower temperature.
  E)
 
  depends of the method of heating


connor417

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  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


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