Two satellites have circular orbits with the same radius. which has a higher speed?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?