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Author Question: Suppose NASA wants a satellite to revolve around Earth 5 times a day. What should be the radius of ... (Read 49 times)

123654777

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Suppose NASA wants a satellite to revolve around Earth 5 times a day. What should be the radius of its orbit if we neglect the presence of the Moon? (G = 6.67  10-11 N  m2/kg2, Mearth = 5.97  1024 kg)
 
  A) 1.44  107 m
  B) 0.69  107 m
  C) 7.22  107 m
  D) 2.11  107 m

Question 2

An object is placed in front of a lens which forms an image of the object.
 
  A) If the lens is convex, the image cannot be virtual.
  B) If the image is real, then it is also inverted.
  C) If the image is real, then it is also upright.
  D) If the image is virtual, then it is also inverted.
  E) If the image is virtual, the lens must be a diverging lens.


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kingdude89

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