Asatellite maintains an orbit equidistant from the earth at all points along its orbital path.
how is the satellite affected by the earth's gravity?

Gravity is pulling on the satellite towards the center of Earth perpendicular to the velocity of the satellite.

Explanation:

On a circular orbit, the force towards the center must be perpendicular to the velocity.

A satellite maintains an orbit equidistant from the earth at all points along its path of orbit due to centripetal force of earth or force of gravity.

Explanation

A centripetal force is a type of force that makes the object follow a closed path.

The orbits of satellite due to the force of centripetal produced by the gravity of earth.

As the earth has a bigger size than the satellite, the gravity force pulls the satellite towards earth, else it will move away from earth.  

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

true tan speed = ang vel x radius