Consider a system consisting of a single hydrogen atom/ion, which has two possible states: unoccupied (i. e., no electron present) and occupied (i. e., one electron present, in the ground state). calculate the ratio of the probabilities of these two states, to obtain the saha equation, already derived in section 5.6. treat the electrons as a monatomic ideal gas, for the purpose of determining j-l. neglect the fact that an electron has two independent spin states

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.