areyes
08-31-2005, 07:33 AM
A comet orbiting the sun reaches perihelion at a distance of 0.42 AU and aphelion out at the orbit of Jupiter. How long does it take the comet to orbit the sun?
If a single asteroid 7km in diameter were to fragment in the earths atmosphere, how many 5 km diameter asteroids would it make?
If a single asteroid 7km in diameter were to fragment in the earths atmosphere, how many 5 km diameter asteroids would it make?