orbit

And what's the altitude?

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

A satellite is in a sationary orbit above Earth. Given that Earth's mass is 6 x 10^24, what is the radius of orbit (km) of this satllite? a) 2.9 x 10^3 km b) 4.2 x 10^4 km c) 8.7 x 10^6 km d) 7.5 x 10^13 km Please help? thank you!

An earth satellite moves in a circular orbit with an orbital speed of 6100 m/s . What is the time of one revolution of the satellite? what is the radial acceleration of the satellite in its orbit? i need help with this. thanks

it take for Venus to complete one orbit of the sun?

...kilometres must it travel? A satellite is in a circular orbit 225 km above the equator of the earth. How many kilometres must it travel for its longitude to change by 78.2°? Assume the radius of the earth equals 6400 kilometres.

I know we have many satellites that orbit Earth and probes that move out from the Earth toward other planets and comets, but do we have any that are just orbiting the sun?

I have Orbit Downloader and whenever i try to download a PDF or a word document attachment from Gmail, it downloads a file named Service Login.html and when i open the file then it opens the login page of Gmail. Please help

hurry and answer plz

one full orbit? explain your answer..

earth? helppppppp

...how I can use a downloader? I can download a file with firefox but the download manager that I tried such IDM and Orbit not work but firefox can download. how to fix this problem.

What is the importance of a satellite in a geosynchronous orbit and what does it have to do with communications, TV, military and computers? Please refer me to websites if you can, thanks!

A satellite is in elliptical orbit with a period of 8.30 multiplied by 104 s about a planet of mass 7.30 multiplied by 1024 kg. At aphelion, at radius 4.5 multiplied by 107 m, its angular speed is 7.158 multiplied by 10-5 rad/s. What is its angular speed at perihelion?

How would you calculate the impulse required to propel a small satellite out of orbit and into space? Clarification: Let's assume the target is the moon.

could it begin to sustain life?

...is above Earth's? atmosphere gravitational field both of these neither of these

What force holds all satellites in their orbit around their primary? according to newton and is the orbital period of a planet affected by its mass? How do you know?

Astronomy 101- A satellite launched into an orbit about the earth, far above the effects of the atmosphere and not acted upon by an outside force, will: A. Escape Earth's gravity. B.Return to the earth after the propulsion stops. C.Continue to orbit Earth. D. Become fixed in space as the earth...

I'm sure it has to do with gravity of the core of the planet, but i can't figure out what the difference would be if the particles were anywhere else in its orbit.