satellites

A satellite orbits the earth with a constant speed at a height 1000 km (1000000 m) above the earth’s surface. Given that the radius of the earth’s surface, R = 6.38 x 106 m, the mass of the earth, M = 5.98 x 1024 kg, and the value of the gravitational constant is G = 6.67 x 10-11 N m2/kg2, the...

Do you know some names of Scientific Satellites and what are there purposes?

my garmin nuvi 205w lost the satellite's connection couple of hours ago. i have it searching still but nothing is being found. is there any way to fix this?

...without being able to directly:? observe them beneath several kilometers of seawater.

Okay, no one seems to get it. The answer is both yes and no. There are two types of satellites. The moon is a satalite that God created. But the satelites sent up by Nasa are not God's creation. God simply created the materials they're made out of.

of the other. Which is true? a) The two satellites travel at same speed b) the heavier satellite travesl 2 times faster than the lighter one c) the lighter satellite travels 2 times faster than the heavier one d) the heavier satellite travels 4 times faster than the lighter one why?

I am starting to set up Free to Air satellite TV for my home and want to upgrade what I currently have. What are the best dishes and LNBs to use for Free to Air TV?

objects? i NEED to know!! thanks! (:

please answer. second time posting and no answer.

Satellites in orbit are accelerated toward the earth, so they must be getting closer and closer to our planet. Is this true or false and why?

if you can, please give a source

How do they stay on course?

I need to know how many satellites Uranus has and a little about the satellites of the planet Uranus. so please please help me its due on march 10,2009 please help me!!!!!!

How many satellites has the US, UK, Russia and other countries sent up? and how many are currently in space? and how many of those in space are inactive?

No they are afraid that the Satellite launch is a disguise for N.Korea to test ballistic missiles.

I have a few problems that I don't quite understand and weren't explained well. So could I get some aid with these problems? --> The gravitational force between two electrons 0.90 m apart is 6.69 multiplied by 10-71 N. Find the mass of an electron. (Use G = 6.67 multiplied by 10-11 N·m2/kg2.)...

photos? measurements?

Im starting an astronomy club and im planning an observation night. But i want a program or software to download onto a laptop to bring out at night so we can choose some objects to observe. Does anyone know of any? plus do most telescopes come with their own software for that stuff?

And if space aliens want to visit us, will they be able to fly through the satellites without crashing?

I know we have been visible since the dawn of radio but how do we know these aliens are friendly or benevolent or are we inviting our own destruction.Even now scientists acknowledge there is life out there in the far reaches of space.