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Author Question: A light-year is the distance that light travels in one year. The speed of light is 3.00 108 m/s. ... (Read 172 times)

nevelica

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on: Jul 29, 2018
A light-year is the distance that light travels in one year. The speed of light is 3.00  108 m/s. How many miles are there in one light-year? (1 mi = 1609 m, 1 y = 365 d)
 
  A) 9.46  1015 mi B) 9.46  1012 mi C) 5.88  1012 mi D) 5.88  1015 mi

Question 2

Which of the following best describes the meaning of force?
 
  A) A body's force is the tendency of that body to continue moving once it is started moving.
  B) A force is a change in velocity.
  C) The force of a moving body is the distance the body travels divided by the time it takes to travel that distance.
  D) A body exerts a force on another body when the first body causes the second body to accelerate.
  E) The force that a body has is the amount of work that the body can do.


brittrenee

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

C

Answer to Question 2

D


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nevelica

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Reply #2 on: Jul 29, 2018
Thanks


brittrenee

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


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