The orbit of a certain a satellite has a semimajor axis of 1.5 x 107 m and an eccentricity of 0.20. Its perigee (minimum distance) and apogee (maximum distance) are respectively:. a. 3.0 x 10^6 m, 1.2 x 10^7 m
c. 1.2 x 10^7 m, 1.8 x 10^7 m
c. 9.6 x 10^6 m, 1.8 x 10^7 m.
d. 1.0 x 10^7 m, 1.2 x 10^7 m.
e. 6.0 x 10^6 m, 9.0 x 10^6 m.

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system