## Homework 1

DUE Tue. Feb. 7

at the *beginning* of class

Homeworks turned in after lecture has begun will be
considered late.
All problems are from the text,
*Universe*
(7th edition) by
Freedman & Kaufmann.

# |
Chapter | Question |

1. | 19 | 32 |

2. | 19 | 33^{*} |

3. | 19 | 34 |

4. | 19 | 37 |

5. | 19 | 38 |

6. | 19 | 40 |

7. | 19 | 41 |

8. | 19 | 45 |

9. | 19 | 48 |

10. | 19 | 52 |

X^{**} |
19 | 46 |

* In addition to the problem in the book, consider the effect of uncertainty in
the measurement. What range of distances do you obtain if the uncertainty in
the parallax angle is ± 0.01&Prime?

(i.e., p = 0.153&Prime ± 0.01&Prime
means p is in the range 0.143&Prime < p < 0.163&Prime).

What happens if the uncertainty is ± 0.1&Prime?

** Extra credit.

Be sure to show your work. A simple "Yes" does not constitute a complete
answer. You must write in complete sentences and show all mathematical
computations to receive full credit. Your homework must be legible for
us to grade it - please be neat!