1. 
An Earth satellite of mass m revolves at a height h from the surface of the Earth. If R is the Earth's radius and g is the acceleration due to gravity at the surface of the Earth, then the velocity of the satellite is given by 




2. 
A satellite orbits at a height h above the Earth's surface. Let R be the Earth's radius. If V_{e} is the escape velocity and V_{o} is the orbital velocity of the satellite orbiting at a height h << R, then 




3. 
A reference frame attached to the Earth 




4. 
If the distance between two masses is increased by a factor of 2, the gravitational force of attraction between them will 




5. 
 The gravitational acceleration on a planet is 20% less than that on the Earth. A rocket takes a man from the Earth to this planet. On neglecting the effect of all other bodies in the sky, which curve in the figure best describes the change in the man's weight with distance traveled?  



