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Author Question: What has to change in the expression F = p / t (which for p = mv is equivalent to Newton's second ... (Read 36 times)

sarasara

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What has to change in the expression F = p / t (which for p = mv is equivalent to Newton's second law) to fit the theory of special relativity?
 a. The momentum p has to equal mv, instead of just mv, where is the relativistic adjustment factor.
  b. The force F has to equal t/p, instead of p/t.
  c. We have to measure t instead of t.
  d. The speed v is replaced by c, the speed of light.
  e. There is no way to reconcile Newton's second law with the theory of special relativity.

Question 2

Suppose the barn shown here is 10 meters long and the pole is 11.5 meters long. What is the minimum velocity that the pole has to travel relative to the barn for someone standing in the barn to measure the pole's length to be 10 meters or less?
 a. 1/4 of the speed of light.
  b. 1/2 of the speed of light.
  c. 80 of the speed of light.
  d. The speed of light c.
  e. 110 of the speed of light.



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carlsona147

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Answer to Question 1

a

Answer to Question 2

b




sarasara

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review


Chelseyj.hasty

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Reply 3 on: Yesterday
:D TYSM

 

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