problem_set_1_sol

problem_set_1_sol - Astronomy 160: Frontiers and...

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Astronomy 160: Frontiers and Controversies in Astrophysics Homework Set # 1 Solutions 1) Read the problem set policy (linked from the syllabus). Then answer the following true/false questions: a) You can drop your lowest problem set score. False b) You can work on problem sets with other students, provided you split up before you write down your answers. True c) You can hand in a problem set 24 hours late and lose only one point. True d) You can consult with a tutor or TF about the precise wording of your answers on the problem sets. False e) You can hand in a problem set a week late and only lose two points. False 2) Express the following in simple scienti±c notation to one-digit accuracy (that is, in the form N × 10 m , where N and m are integers). Please do not use calculators, and show your work. a) 8 × 365 . 24 8 × 365 . 24 = 8 × (4 × 10 2 ) = 3 × 10 3 b) 5 × 6 × 10 - 3 5 × 6 × 10 - 3 = 30 × 10 - 3 = 3 × 10 - 2 c) 4 × 10 6 1
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4 × 10 6 = 4 × (10 6 ) 1 / 2 = 2
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problem_set_1_sol - Astronomy 160: Frontiers and...

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