| i have physics problems i have no idea how to do.?
On july 19, 1969, apollo 11's orbit around the moon was adjusted to 111 km. The radius of the moon is 1785 km and the mass of the moon is 7.3 x 10^22 kg.
a. how many minutes did it take to orbit once?
b. at what velocity did it orbit the moon?
the asteroid Ceres has a mass od 7 x 10^20 kg and a radius of 500 km.
a. what is g on the surface?
b. how much would a 85 kg astronaut weigh on Ceres?
how high does a rocket have to go above earth's surface until its weight is half of what it would be on earth?
If anyone can explain, please do.
| 
02-27-2008, 06:55 PM
Similar Threads 
Linear Mode
