The internal energy of a system .Select one:A. is the sum of the potential and kinetic energies of the componentsB. is the sum of the rotational, vibrational, and translational energies of all of its componentsC. refers only to the energies of the nuclei of the atoms of the component moleculesD. is the sum of the kinetic energy of all of its componentsE. none of the above

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.