Satellites which give high value data for remote sensing,meteorology and environmental studies are

$A$ planet is revolving around the sun in an elliptical orbit. Its closest distance from the sun is $r_{min}$,and the farthest distance from the sun is $r_{max}$. If the orbital angular velocity of the planet when it is nearest to the sun is $\omega$,then the orbital angular velocity at the point when it is at the farthest distance from the sun is:

What is a geostationary satellite? What is the orbital period of a geostationary satellite?

Does a satellite require fuel to orbit around the Earth?

Does the orbital velocity of a planet depend on its mass?

Even though the gravitational force of the Earth acts on the Moon towards its center,why does the Moon not fall onto the Earth?