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Author Question: Consider two spaceships, each traveling at 0.500c in a straight line. Ship A is moving directly away ... (Read 78 times)

nummyann

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on: Jul 27, 2018
Consider two spaceships, each traveling at 0.500c in a straight line. Ship A is moving directly away from the sun and ship B is approaching the sun. The science officers on each ship measure the velocity of light coming from the sun.
 
  What do they measure for this velocity? A) Ship A measures it as less than c, and ship B measures it as greater than c.
  B) Ship B measures it as less than c, and ship A measures it as greater than c.
  C) On both ships it is measured to be less than c.
  D) On both ships it is measured to be exactly c.
  E) On both ships it is measured to be greater than c.

Question 2

A converging lens with the same curvature on both sides and focal length 25. cm is to be made from crown glass (n = 1.52). What radius of curvature is required for each face?
 
  What will be an ideal response?


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lin77x

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

D

Answer to Question 2

26. cm


nummyann

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Reply 2 on: Jul 27, 2018
Gracias!

cpetit11

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Reply 3 on: Yesterday
:D TYSM

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