If $R$ is the radius of orbit of a satellite,then the kinetic energy of the satellite is

What is the change in energy required to move a satellite from an orbit of radius $2R$ to an orbit of radius $3R$? ($R$ = radius of the Earth)

The total energy of a circularly orbiting satellite is

The additional kinetic energy to be provided to a satellite of mass $m$ revolving around a planet of mass $M$,to transfer it from a circular orbit of radius $R_1$ to another of radius $R_2$ $(R_2 > R_1)$ is:

$A$ satellite is orbiting the Earth. If its orbital radius is reduced to half of its initial value,then the percentage change in its total energy is: (in $\%$)

For a satellite moving in an orbit around the earth,the ratio of kinetic energy to potential energy is