Author Question: The International Space Station orbits at an average 360-km altitude so that it is mainly above ... (Read 33 times)

clippers! · **on:** Jul 29, 2018

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