1. Problem 1.3.I
2. Problem 2.2.I
3. Problem 2.4.I: For part a), calculate also the velocity (relative to Earth) necessary to i) go into a circular orbit at i=90 degrees, ii) reach Mercury's orbit, iii) hit the Sun, and iv) leave the Solar System. Rank in order of increasing difficulty. Which have we done? Note: the old book does not have parts d) and e)!
4. Problem 2.16.I
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