a)Most planets rotate in the same direction in which they orbit.
b)Most planets orbit at the same speed.
c)Almost all moons orbit their planet in the same direction as the planet's rotation.
d)All planets orbit the Sun in the same direction.
e)Most planetary orbits lie nearly in the same plane
2006-10-29 13:43:28 · 8 answers · asked by Coco 2 in Science & Mathematics ➔ Astronomy & Space
b) most planets orbit at the same speed -- this would make sense only if the planets were all at approximately the same distance from the Sun. At different distances, the orbital speeds must be different to establish a stable orbit.
2006-10-29 13:49:01 · answer #1 · answered by urbancoyote 7 · 0⤊ 0⤋
b) is definitely wrong: laws of orbital physics say a planet orbits at a higher speed the further it is from sun.
2006-10-29 13:52:31 · answer #2 · answered by Acraz 2 · 0⤊ 0⤋
B)...rationale is based on Kepler's law which basically says that orbital speed depends on how close the objects are.
2006-10-29 13:49:15 · answer #3 · answered by MarcH 2 · 0⤊ 0⤋
I'm pretty sure that A and E are incorrect!
2006-10-29 13:46:17 · answer #4 · answered by ray of sunshine 4 · 0⤊ 1⤋
c
2006-10-29 13:46:32 · answer #5 · answered by Clintopia 2 · 0⤊ 0⤋
i would hazard a guess at b
2006-10-29 13:46:54 · answer #6 · answered by mel 3 · 0⤊ 0⤋
b dude
2006-10-29 14:30:55 · answer #7 · answered by scifuntubes 3 · 0⤊ 0⤋
B&C
2006-10-29 14:56:57 · answer #8 · answered by dimplesoft 3 · 0⤊ 0⤋