The International Space Station orbits at an average 360-km ...

[clippers!]

The International Space Station orbits at an average 360-km altitude so that it is mainly above Earth's
 
  A) atmosphere.
  B) gravitation.
  C) both of these
  D) none of the above

Question 2

Beings on spherical asteroid  have observed that a large rock is approaching their asteroid in a collision course. At 7514 km from the center of the asteroid, the rock has a speed of 136.0 m/s and later at 2823 km it has a speed of 392.0 m/s.
 
  Use energy conservation to find the mass of asteroid . You can neglect any effects due to the parent star of the asteroid. (G = 6.67  10-11 N  m2/kg2) A) 4.582  1021 kg
  B) 9.164  1027 kg
  C) 6.112  1028 kg
  D) 4.582  1020 kg

[joneynes]

Answer to Question 1

Answer: A

Answer to Question 2

A

[clippers!]

Thanks for the timely response, appreciate it

[Alyson.hiatt@yahoo.com]

Excellent