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Author Question: Einstein's principle of the constancy of lightspeed and principle of relativity are A) ... (Read 82 times)

tuffie

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on: Jul 29, 2018
Einstein's principle of the constancy of lightspeed and principle of relativity are
 
  A) assumptions which cannot be proven.
  B) the basic principles of his theory of relativity.
  C) Both of the above.
  D) Neither of the above.
  E) now known to be false at the microscopic level.

Question 2

A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the acceleration due to gravity is 9.80 m/s2.
 
  (a) How far from the base of the table will it strike the floor?
  (b) How long will it be in the air?


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cdmart10

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

C

Answer to Question 2

(a) 75.0 cm (b) 0.505 s


tuffie

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Reply #2 on: Jul 29, 2018
Thanks


cdmart10

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Reply #3 on: Jul 29, 2018
Welcome :)


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