Hints and/or answers for some of the in-text exercises

Be sure to make a serious try at answering each exercise before checking your answers here. You learn very little from just looking up the answer.

Chapter 1, a survey of the solar system

• Page 21, column 2
• Page 23, column 2
• Page 29, column 2, 1st exercise
• Page 29, column 2, 2nd exercise
• Page 30, column 2, 2nd exercise
• Page 30, column 2, 3rd exercise
• Page 32, column 1, 2nd exercise

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Last modified: 2005 Sep 1