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Author Question: Which of the following stars is the coolest? A) B7 B) G9 C) K7 D) ... (Read 19 times)

abc

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on: Jul 27, 2018
Which of the following stars is the coolest?
 
  A) B7
  B) G9
  C) K7
  D) K4

Question 2

To determine the height of a flagpole, Abby throws a ball straight up and times it. She sees that the ball goes by the top of the pole after 0.5 s and then reaches the top of the pole again after a total elapsed time of 4.1 s.
 
  How high is the pole above the point where the ball was launched? A) 10 m
  B) 13 m
  C) 16 m
  D) 18 m
  E) 26 m


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Li Jun

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

C

Answer to Question 2

A


abc

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Reply #2 on: Jul 27, 2018
Thank you!


Li Jun

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Reply #3 on: Jul 27, 2018
Always glad to help...


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