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Author Question: A 700-kg satellite is in an elliptical orbit around Earth with a perigee (the point of closest ... (Read 89 times)

krzymel

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on: Jul 29, 2018
A 700-kg satellite is in an elliptical orbit around Earth with a perigee (the point of closest approach) of 7.50  106 m from the center of Earth and an apogee (the furthest point from the center of Earth) of 11.5  106 m.
 
  What is the total energy of the satellite? The mass of Earth is 5.97  1024 kg and G = 6.67 x 10-11 Nm2/kg2. A) -4.51  1010 J
  B) -3.10  1010 J
  C) -2.08  1010 J
  D) -1.04  1010 J
  E) -1.47  1010J

Question 2

A certain light source blinks once per second in its own frame of reference. As you recede from the blinking source, you observe the frequency of blinks to be
 
  A) less than 1 Hz.
  B) 1 Hz.
  C) more than 1 Hz.


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sultansheikh

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

E

Answer to Question 2

Answer: A


krzymel

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Reply #2 on: Jul 29, 2018
TY


sultansheikh

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Reply #3 on: Jul 29, 2018
You're welcome


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